[tomodachi94]

This reminds me of the various people who kept commonplace books in the "19th century and the Renaissance": https://en.m.wikipedia.org/wiki/Commonplace_book

This additionally reminds me of a Bullet Journal; for me, a Bullet Journal fulfills the role of the author's sketchbook; the creator, Ryder Carroll, brands it as a planner, diary, sketchbook, calendar, and a 'catch-all for life': https://en.wikipedia.org/wiki/Bullet_journal