Toward the end of last year, a colleague was asking us to vote on favorite books in different categories--e.g. favorite graphic novel, favorite poetry collection, etc. After trying to recall exactly what I'd read in those categories, I suddenly became very grateful for the partial record of books I'd read within the First Monday Book Day posts.
This year, I'm using a bullet journal for the first time (because an author recommended it!), so I've got a few pages set aside at the back for jotting down book titles (and authors and illustrators). It's no spreadsheet, but at least at the end of 2020, I will have a good accounting of what I've read.
Do you keep track of the books you read? If so, how?