https://soranews24.com/2022/07/10/japanese-bookstore-dares-to-be-different-with-common-sense-fix-to-weird-industry-hassle/

Apparently many Japanese bookstores sort and arrange their books by Publisher rather than by author name!

While this may make some esthetic sense on behalf of publishers in a commercial space, it isn't necessarily easy for customers to find books this way.