To determine whether a source is primary, secondary, or tertiary, look at the position of the source. If the source records a text, event, or experience without interpretation, it is a primary source. If the source interprets a text, event, or experience, it is a secondary source. If the source provides an overview of information about a given text, event, or experience, it is a tertiary source.
primary sources are firsthand records of an event secondary sources analyze primary sources tertiary sources condense and summarize information