Typewriter-Adjacent Writing Devices<br /> by [[Joe Van Cleave]] on YouTube<br /> accessed on 2026-02-02T09:17:37

Typewriter-like writing devices: - Privacy - security - autonomy

Freewrite (fka Hemingwriter)

• Smarttypewriter $699
  • Hemingway Signature $1000+
  • Valentine $999
• Traveler: clamshell device, smaller $549
• Alpha $349
• Alpha Cosmic $499 with colorful keys
• Freewrite Plus subscription service

Remarkable

• cloud storage or subscription
• Starts around $400-600+

Pomera

• $499

Zerowriter

-$250 - open source, SD card, customizable keys - raspberry pi based

Supernote

• tablet
• $329-500

BYOK

• Kickstarter; shipping now.

Typewriter Video Series Episode 37: AlphaSmart Neo<br /> by [[Joe Van Cleave]]<br /> accessed on 2026-01-26T12:21:40

Typewriter Profile: Comparing the Olivetti Lettera 22, Lettera 32, and Studio 44<br /> by [[Damon Di Marco]] of CreateX3.com on YouTube<br /> accessed on 2026-01-19T11:32:11

Marcello Nizzoli designed the Olivetti Lettera 22, an ultra-portable, and the standard Lexicon 80. He used the automotive idea of press-forming steel to the Olivetti line.

In 1959, the Illinois Institute of Technology chose the Olivetti Lettera 22 as the best designed product of the last 100 years. It also won the Compasso D'Oro Award in 1954.

1963 Lettera 32 introduced<br /> Square keys

1965 Olivetti Studio 44 introduced<br /> Between the standard and the portable<br /> Comes with a case, but is heavier than many portables

Prefer original spools with spool nuts.

plus-minus-next comes from [[Tiny Experiments byAnne-Laure Le Cunff]], so #openvraag what her sources are.

they're a list of answers to three questions about the past week, what went well, what didn't and what do you conclude for coming week.

[[Tiny Experiments byAnne-Laure Le Cunff]] describes plus as 'any accomplishments that made you proud' (tadaa, sense of wonder, joy, gratefulnes etc) minus as challenges or obstacles (vgl Maandmap), regrets, mistakes made, straying from healthy habits. The next reads more like strategies/process for [[More like this less like that 20201111165305]]

It gives as source the ancient Greek πρᾶξις , plus 'centuries' of practical wisdom. So aligns it w general reflection, and [[Action Research is vraag-reflectief leven 20031215142900]]

the next phase of the review not styled as more tasks (common result for me), and not additional goal planning. It's a more narrow question: what can I easily do different from this week. About practice/method/proces. Next items are sort of smart. The making-it-easy bit echoes [[Gewoonte maak het makkelijk 20201008140324]] from [[Atomic Habits by James Clear]]

Answering questions first, and only afterwards look at consequences/next steps

suggests plus-minus-next as a method to make reviews have more utility.

Michael Gisiger on reviews.

Jorge Arango on the book [[Superagency by Reid Hoffman Greg Beato]], wrt how to look at AI.

Used a weekly review of 30mins to see patterns across individual entries, and recurring issues in teaching (or rather recurring observations, not the same thing)

TypewriterMinutes - Typewriter Review: 1963 Sears Cutlass - YouTube<br /> by [[TypewriterMinutes]]<br /> accessed on 2025-12-26T01:20:57

Index cards are important tools, particularly if you're going through a thousand or more a month. I tend toward the cheapest ones I can find and am always half tempted to bulk order them in pallet quantity from somewhere to get a steep discount, especially as I've got filing cabinet storage space for another 40,000 4x6 index cards readily at hand.

I looked more closely at the Wexfords I just picked up and they are made in India. Comparatively my Staples branded cards are also made in India, while the Amazon Basics and Oxford cards are made in the United States.

As for line quality, the most consistent I've seen are the Stockroom Cards designed in California, but made in China. Oxford has been generally solid and Amazon lines have been occasionally hit and miss.

About a year ago, the local Amazon Fresh store had dozens of their 500 card packs listed for an overly reasonable $2.50 each (half a penny per card), so I picked up about 15,000 cards at a time when they were usually in the $12-15 range online. They're presently at a near annual best of $7.45 (about 1.5 cents per card). At $3.50 for 100, the Wexfords ran almost twice as expensive at 3.5 cents per card. I suspect tariffs are likely affecting the price of foreign cards more heavily lately.

I've not really tried out any listed as "flashcards", so I can't comment on the prices or quantities there. Some of the ones I have seen tended to the more expensive side, so I've passed on them.

Good luck in your continued search.

I've never tried Wexford before either, but often those sorts of products are mass produced in China by one company and just re-labeled for half a dozen different companies, so searching around may find something similar under a different name.

I will say that some of the ones you listed tend to be the cheapest, lower quality cards I've run across. I use the Amazon Basics a lot, but primarily because they had a sale on their bricks of 500 cards a year or two back and I picked up 20 of them for $2.50 each.

Oxford cards are some of the smoother (inexpensive) cards I've tried in the past, but even their paper quality has shifted a bit over the past 15 years.

If you're doing 3x5 cards in blank, Brodart's library catalog cards are of a much higher quality and durability without breaking the bank and they're wonderfully smooth as well. https://www.shopbrodart.com/

Stockroom plus has some great quality, smooth cards, but I've only ever seen them in gridded format and never plain or lined: https://www.amazon.com/Grid-Index-Cards-Inches-White/dp/B08BJ11LWC/

Notsu also has some high quality smooth cards, but I don't think I've seen them in lined format and they can tend toward being very expensive.

If you have the funds and want something incredibly smooth, try the Exacompta Bristol cards made by Clairefontaine. Their manufacturing process is dramatically different and they're incredibly smooth, particularly for fountain pen use. The downside is that they can be almost 3 times more expensive than other brands. They do carry their cards in a wide variety of sizes and formats though.

One of these days I ought to lay out a grid of the more common cards and do some more serious reviews.

reply to https://old.reddit.com/r/indexcards/comments/1p8xog6/looking_for_index_card_recommendations_similar_to/

board game: mid-weight, beginner-friendly

SCM Electra 220 Versus Coronet Automatic 12 - YouTube<br /> by [[Joe Van Cleave]]<br /> accessed on 2025-11-01T22:48:53

The Coronet Automatics were one of the first in their line with 1/2 line spacing.

https://www.instagram.com/reel/DNYh6b_uBwd/?hl=en

Terry Gross reads slowly to start and speeds up as she continues. She annotates and dog-ears as she reads and then makes notes and questions after she's done.

New Yorker Staff. 2007. “The Typing Life: How Writers Used to Write.” The New Yorker. https://www.newyorker.com/magazine/2007/04/09/the-typing-life (October 22, 2025).

Ron's Reviews - YouTube<br /> by [[Parks and Recreation]] <br /> accessed on 2025-10-06T22:21:10

Adler J3 Typewriter - YouTube<br /> by [[Joe Van Cleave]]<br /> accessed on 2025-09-27T15:42:43

The rubber gromets/bushings of the Adler J3 are often an issue with their cases when they've aged.

Joe also compares this with the Olympia SM3 and an Optima Super typewriter (poorly designed)

John Lewis is closing his typewriter shop in Arizona soon.

https://www.reddit.com/r/typewriters/comments/1g1y3ii/thoughts_on_the_nakajima_wpt150/

Book Review : Scientist Obscured by His Achievements - Los Angeles Times<br /> by [[Lee Dembart]] in Los Angeles Times 1988-10-04 <br /> accessed on 2025-09-11T10:29:10

proper balance between a person's life and their contributions to the world is a difficult matter

Why Who Did What When<br /> by [[Solomon Golomb]] in American Scientist<br /> accessed on 2025-09-11T10:22:57

Information theorist Solomon Golomb, who directly participated in the applications of information theory to early genetics, doesn't feel that it influenced the substance of molecular biology in the 1950s and 1960s though it may have influenced the rhetoric.

Buying a New Typewriter - YouTube<br /> by [[Joe Van Cleave]]<br /> accessed on 2025-08-29T18:33:40

Royal Century - Silver Seiko Typewriter Review - YouTube<br /> by [[Joe Van Cleave]]<br /> accessed on 2025-08-28T11:37:07

Broadly a review of the Royal Century made by Silver-Seiko, but he also compares the performance with the Hermes Rocket/Baby and the Smith-Corona Skyriter, which he feels aren't as solid as the Century despite their lighter weight and portability.

Reviewing the We R Memory Keepers Typecast Typewriter! - YouTube<br /> by Sarah Everett for [[Just My Typewriter]]<br /> accessed on 2025-08-27T23:14:56

Capped Mechanical Pencils: Who Did It Better, Pentel Sharp Kerry or Uni Kuru Toga Dive?<br /> by [[The Gentleman Stationer]]<br /> accessed on 2025-08-13T09:52:42

Whittle, Alasdair. Review of Memory, Myth and Long-Term Landscape Inhabitation, edited by Adrian M. Chadwick and Catriona D. Gibson. Archaeological Journal 172, no. 2 (July 3, 2015): 493–94. https://doi.org/10.1080/00665983.2015.1040685.

Mediocre viewpoint of the overall research, in part because claims are not logically proven.

I'll note that the reviewer is approaching things from a Western perspective and not that of an indigenous person whose culture relies heavily upon or(primary) orality.

US Navy Underwood Universal<br /> by [[Joe Van Cleave]]

Royal Arrow by [[Joe Van Cleave]]

The “Charming?” Yet awful Typecast Typewriter (updated) by [[Lucas Dul]]

a tale of two remingtons (remette vs remington 5) by [[Just My Typewriter]]

a $13 typewriter from 2012.......(the Royal Scrittore) by [[Just My Typewriter]]

Most likely manufactured by Shanghai Weilv, but not mentioned or obvious anywhere.

Scriveiner Classic Fountain Pen Review by [[Joe Van Cleave]]

Kmart 300 Deluxe 12 Typewriter by [[Joe Van Cleave]]

Because of the geometry of the JP-7's ribbon vibrator, which hinges from the right rather from the middle, the ribbon can rub against the paper/platen. To remedy this, one can mis-thread the left side to keep the ribbon away from the paper.

Typewriter Video Series - Episode 189: Underwood SX by [[Joe Van Cleave]]

Joe mentions, again, how standards fill up your field of view and aid in cutting out distractions so you can focus more while writing.

At the end Joe talks about the hobby of repairing typewriters.

Olympia SG1 Typewriter by [[Joe Van Cleave]]

https://www.reddit.com/r/typewriters/comments/1hnsfhn/i_bought_some_trash_off_amazon/

The majority of Scheil's critiques of desired material seems to have been filled in broadly by:

Henley, Georgia, and Joshua Byron Smith, eds. A Companion to Geoffrey of Monmouth. Brill’s Companions to European History 22. Brill, 2020. http://archive.org/details/oapen-20.500.12657-42537.

Obviously this isn't an inconsequential amount of scholarship (575+ pp) to have included in Reeve's volume.

While it's nice to identify what is not in the reviewed volume, it's probably better to frame it that way rather than to seemingly blame the authors/editors for not having included such a massive amount of work. This sort of poor framing is too often seen in the academic literature. Reporting on results and work and putting it out is much more valuable in the short and long term than worrying so much about what is not there. Authors should certainly self-identify open questions for their readers and create avenues to follow them up, but they don't need to be all things to all people.

Scheil, Andrew. Review of Michael D. Reeve, ed., Neil Wright, trans. Geoffrey of Monmouth. The History of the Kings of Britain: An Edition and Translation of De gestis Britonum (Historia Regum Britanniae), by Michael D. Reeve. The Journal of Medieval Latin 19 (January 2009): 318–21. https://doi.org/10.1484/J.JML.3.39.

for - program event selection - 2025 - April 2 - 2-3:15pm GMT - Skoll World Forum - The Changing State of AI, Media - Indyweb - Stop Reset Go - TPF - Eric's project - Skoll's Participatory Media project - relevant to - adjacency - indyweb - Stop Reset Go - participatory news - participatory movie and tv show reviews - Eric's project - Skoll's Particiipatory Media - event time conflict - with - Leadership in Alien Times

adjacency - between - Skoll's Participatory Media project - Global Witness - Indyweb - Stop Reset Go's participatory news idea - Stop Reset Go's participatory movie and TV show review idea - Eric's media project - adjacency relationship - Participatory media via Indyweb and idea of participatory news and participatory movie and tv show reviews - might be good to partner with Skoll Foundation's Participatory Media group

Hill, Rosemary. Review of Use your theodolite, by Colin Richards and Vicki Cummings. London Review of Books, December 26, 2024. https://www.lrb.co.uk/the-paper/v46/n24/rosemary-hill/use-your-theodolite.

Typewriter review: Royal Epoch by [[Richard Polt]]

The 2023 Rover Typewriter: Worst Machine Ever? by [[Typewriter Chicago]]

I know Michaels was carrying the We R Memory Keepers typewriter, but hadn't heard about Home Depot carrying them.

Rover made by Shanghai Weilv Mechanism Company still making typewriters (bad quality control, plastic, poor alignment). These are variously rebadged as: - the Rover - the Royal Epoch - We R Memory Keepers (Michaels, Home Depot) - Royal Classic (metal shell) - Maplefield (Target, Walmart, Michaels) - The Oliver Typewriter Company

Will Davis has determined that they're all based on the Olympia Carina.

The Atlantic. Review of Plutarch’s Lives, by Arthur Hugh Clough, John Dryden, and Plutarch. January 1860. https://www.theatlantic.com/magazine/archive/1860/01/plutarchs-lives/627616/

Some excellent quotes and evidence for the importance of Plutarch's Lives, almost more so than the importance of this particular translation.

Read A System for Writing by Bob Doto by [[Ton Zijlstra]] – Interdependent Thoughts

Typewriter Video Series - Episode 187: Remington Ten Forty by [[Joe Van Cleave]]

JVC: Somewhere between a portable and an ultraportable. Good, but not great. Could be a solid, easy-to-use machine for a type-in. He wasn't a fan of the touch. Likely wouldn't use it as a daily machine.

Remington Monarch by [[Joe Van Cleave]]]

The Remington Monarch (rebadged as a Singer Graduate), is one of the few machines with 1, 1.5, 2, 2.5, and 3 line spacing settings.

It has a true carriage lock on the front of the machine.

Generally solid build, particularly on the main body. Only some portions on the back are pressed metal.

JVC generally likes this machine with respect to it's contemporaries.

Tom Hanks Reviews the Children’s Novel ‘Olivetti,’ by Allie Millington by [[Tom Hanks]]

Fancy Topology Book by [[The Math Sorcerer]]

1974 text on topology by Murray Eisenberg

Topology: A Short Introduction by [[badbettybooks]]

only the most surface level review here from the perspective of a relatively unsophisticated undergraduate

Book Review: “Impossible Creatures,” by Katherine Rundell by [[Laura Miller]] in New York Times

I hadn't put her Donne work together with her children's writing...

Read Sun 8/25/2024 7:02 PM

Strange Loops: Reading a Book on How to Read a Book by [[Sascha Fast]]

Not quite sure of what Fast is getting at here. Language barrier perhaps?

A Quick Overview on the Groma Kolibri by [[Typewriter Chicago]]

Lucas Dul loves the Groma Kolibri as one of the finest (ultraportable) typewriters out there.

He also loves the Omega 2 (which is nearly identical to the Princess 200.)

Typewriter Video Series Episode 31: Culling the Herd by [[Joe Van Cleave]]

Rating typewriters by:<br /> - looks<br /> - feel<br /> - print quality

Howard L. Wilson, creator of the Memindex system starting 1903 and in wide use through the 1950s, would be proud that a modern variation of his system is still living in analog form. While it doesn't provide the bench depth of options of materials and sizes, the system is compact, modern, and just as simple as the original. The handcrafted archive boxes now bring the system up to par with its predecessor with grace and an elegant minimalistic esthetic.

Perhaps in a few years we might see something akin to Yawman & Erbe or Shaw-Walker's 16 drawer filing cabinets for long term storage of multiple years?

Cothran, Ann, and George E. Mason. “The Typewriter: Time-Tested Tool for Teaching Reading and Writing.” The Elementary School Journal 78, no. 3 (1978): 171–73. https://www.jstor.org/stable/1001415

No new results here, but a modest overview and literature review of research on typewriters in classrooms.

These Three Books Help Put the US Election in Perspective by [[Matt Hooper]]

Back to the Futura: The Jetsons' Typewriter - Royal Futura 800 600 400 by [[Lazy Dog Typewriters]]

Empire Sky-Riter Typewriter Review by Smith Corona: The End of Empire by [[Lazy Dog Typewriters]]

Triumph Norm 6 Revisited by [[Joe Van Cleave]]

The 7Keys Retro Typewriter Keyboard by [[Just My Typewriter]]

Sarah thought it was fairly solid for a mid level price. Replaceable blue keys, so a nice mechanical keyboard experience. Better than some of the cheap white label drop ship keyboards in the space.

Royal Empress by [[Joe Van Cleave]] and [[Kevin Kittle]]

Royal Standards were broadly the same internally from 1912 onward.

The Royal HH: my FAVORITE desk typewriter by [[Just My Typewriter]]

Good basic intro, and overview, but doesn't get into deep functionality review. Short list of some writers who used it from Richard Polt's site, though not complete.

Typewriter Video Series - Episode 173: Olympia SG-3 by [[Joe Van Cleave]]

Type Shop, Ep. 15: The Ultimate Keyring Toolset Guide by [[Typewriter Chicago]]

Charles Gu's new keyring pliers for about $500 for a set are as good as if not better than vintage tools. In particular the new rubber pieces seem to help protect from breaking the original glass key tops which will then require replacement.

Olympia SM3 & 9 Comparison by [[Joe Van Cleave]]

available at: https://www.unz.com/print/SaturdayRev-1940mar09-00006/

Barzun, Jacques. "Read, Do Not Run" Review of How to Read a Book, by Mortimer J. Adler. The Saturday Review, March 9, 1940.

Jacques Barzun wrote a review of of the Great Books when they came out in 1952.

Barzun, Jacques. “The Great Books.” The Atlantic, December 1952. https://www.theatlantic.com/magazine/archive/1952/12/the-great-books/642341/.

See notes at: https://hypothes.is/a/8o-z3DHLEe6_PMtDOvwCmg

My first "ultra-portable" (Skyriter 1955) by [[Just My Typewriter]]

55 had an integral cover versus later versions which had bags.

Typewriter Video Series - Episode 143: Rocket Versus Skyriter by [[Joe Van Cleave]]

Typewriter Video Series Episode 407: Remington Ten Forty by [[Joe Van Cleave]]

worth of peer reviews

It looks like the Stephen King entry has a picture of the book cover taped into it. This is an interesting idea.

How much time do book reviewers really spend on either a book or their actual review? Often it's a rushed process at best. How much can a reader get out of a quick read and gut reaction?

Perhaps things may be good from some of the best of the best reviewers, but generally, the author likely put more work into their work than the reviewer did.

Left Behind by [[Nancy Isenberg]]

This is of interest because Isenberg's White Trash came out in January 2016 just a five months before Vance's Hillbilly Elegy was released. As a result she didn't get to reference it in her book.

Top 10 Typewriters for Writers by [[Daniel Marleau]] (created One Typed Page)

Hermes 3000

Iroful Fountain Pen Friendly Paper Review - Better Than Cosmo Air Light? by [[Blake's Broadcast]]

A mini-review of For You by Patrick Rhone by [[Jacoby]]

[[Curtis McHale]] in Duly Noted – Jorge Arango

Arango's book sounds like what I expected it would.

https://www.youtube.com/watch?v=rSuz01zvOjE Jerry Michalski's review of The Great Transformation (1944) by Karl Polanyi

The Notebook by Roland Allen review: a history of scribbling by [[Thomas W Hodgkinson]]

The Notebook by Roland Allen review – notes on living by [[Sukhdev Sandhu]]

Not so much of a review as the dumping out of most of the reviewer's highlights from the book. I get the impression that he at least read it and paid attention, but what did he actually think of it?

How to Read (and Understand) Hard Books<br /> Jared Henderson https://www.youtube.com/watch?v=laXcJyx9xCc

A short overview of Adler and Van Doren's How to Read a Book

Not bad, though Henderson accidentally reads "syntopical" as "synoptical".

https://www.nytimes.com/2023/10/27/business/media/reviewed-usa-today-ai-writers.html

Goldfajn, Tal. “Thou Shalt Show: On Robert Alter’s Translation of the Hebrew Bible.” Book Review of The Hebrew Bible: A Translation with Commentary by Robert Alter. Los Angeles Review of Books, June 2, 2020. https://lareviewofbooks.org/article/thou-shalt-show-on-robert-alters-translation-of-the-hebrew-bible/.

Bruce, James. “The Godless Bible.” Book Review of The Hebrew Bible: A Translation with Commentary by Robert Alter. Law & Liberty, July 15, 2022. https://lawliberty.org/book-review/the-godless-bible/.

After such a scathing review, really?? I'd be interested to hear a few paragraphs about why.

Alexander, Bryan. “Undents, Volvelles, and Didymus the Brazen-Gutted: Notes on Ann M. Blair’s Too Much to Know.” Bryan Alexander (blog), January 12, 2016. https://bryanalexander.org/reviews/undents-volvelles-and-didymus-the-brazen-gutted-notes-on-ann-m-blairs-too-much-to-know/.

Hay, Daisy. Review of Rare, Obsolete, New, Peculiar, by Sarah Ogilvie. London Review of Books, October 19, 2023. https://www.lrb.co.uk/the-paper/v45/n20/daisy-hay/rare-obsolete-new-peculiar.

https://dothemath.ucsd.edu/2023/09/the-dawn-of-everything/

Someone complaining of Scott Scheper's teaching/pedagogy/"system".

One needs to read a bit between the lines with only the initial context, but they circled around later to say:

I am talking about that A**net guy

Shalini Misra, Patrick Roberts, Matthew Rhodes. (2020). Information overload, stress, and emergency managerial thinking. International Journal of Disaster Risk Reduction Volume 51, December 2020, 101762 https://doi.org/10.1016/j.ijdrr.2020.101762

reply to u/IvanCyb at https://www.reddit.com/r/antinet/comments/15eljnf/how_do_you_refer_from_and_to_multiple_sources/

Usually if I find a quote somewhere, I'll try to track down the original source, check the context and excerpt it from the original. If it's something mission critical, I might note that it was excerpted and used in other sources and whether it was well excerpted for their case or not. Sometimes, quoting can also help to make a solid case about the influence a work had and notes on that can be a useful thing. If I make multiple notes about the same sort of idea, that's fine, though I typically try to file them all next to each other for easy consultation and comparison, if necessary. As an example, I have quotes from multiple sources about note taking indicating that one should only write on one side of a(n index) card. Some quote earlier sources, some state it without attribution, some say they've learned to do so over time and with experience. Some give reasons why and some don't. The only way to track these practices over time is to note them all together for comparing and contrasting. It wasn't until I'd seen the third mention that I realized the practice was an interesting/important one and worth tracking, so I had to go back and dig up the originals which I had written briefly on their bibliographic cards with page numbers, so it made things easier to create main cards out of them. Because they're all stored together, there's only one index entry for them (for the first one), under "note taking" with the subheading "write only on one side". Alternately I might have made a single note card about the idea of the practice and created a list with pointers of those who used it (or didn't) and links to the sources where I originally found them. Do what makes most sense for you for tracking based on your own situation and needs. You may also find that these things happen frequently when doing literature reviews and things are repeated often within a field. Sometimes it's helpful to figure out who said a thing first and whether or not others are repeating/quoting them or coming to the same conclusion on their own. Is it a solid conclusion? What is the evidence or lack thereof? The only way to know is to start keeping track of these patterns in your reading and notes. Where and how you choose to track it in your zettelkasten is up to you. Sometimes it may be in brief notes with the original source, sometimes in a "hub note", and still others broken out into primary cards collected together.

At 9¢/card these are very expensive in comparison to bulk cards which usually can be found for 1-2¢/card. The difference however is in the luxuriousness of the silky smooth texture. Whether you're writing with your favorite fountain pen or a carefully chosen pencil. I don't know if these are the same brand of Bristol cards that Vladimir Nabokov used for his writing, but one could easily image him using such lovely material.

These provide a very smooth writing experience for fountain pens, gel pens and pencils. I particularly love the way my Tennessee Reds and Blackwing 602s glide over their surface. In comparison to some Japanese stationery, I'd put these cards somewhere between tsuru tsuru (slippery) and sara sara (smooth). If you're looking for a toothier paper, you'll definitely want to look elsewhere. They take fountain pens pretty well with no feathering or ghosting. My juiciest fountain pen dries in about 15 seconds, while a drier extra fine is dry in about 7 seconds, so it may take some care not to smear ink if you're on the messier end of the spectrum.

Pencil erases reasonably well, though there may be some minimal residual ghosting here. At 205 gsm, they've got a satisfying thickness unseen in most index cards and one is unlikely to rip or crinkle them when erasing. They're also thick enough that the wettest Sharpie won't bleed much less ghost through. You have to hold a card up to a backlight to see the appearance of any ghosting through it and even then, not well.

For the sticklers used to using standard 4 x 6" index cards, one should take note that the dimensions of these are slightly shorter in both dimensions—they're closer to 3.94" x 5.91". This means that you might have to take some care that while flipping through mixed company of cards your Exacompta can potentially hide between larger imperial sized cards. They're also close to, but not quite A6 in size either (105 x 148.5 mm or 4.1 x 5.8 inches).

My first impressions of the Onyx Boox Tab Ultra C<br /> by Cato Minor

via: https://www.3x5life.com/collections/frontpage/products/3x5-life-system-with-mini-course

They apparently offer a mini course outlining the system.

One wonders how much "why" they offer?