What do you call a bookshelf that's finally organized?

Totally shelf-assured.

Did You Know?

"Shelf-assured" plays on "self-assured" — a confident bookshelf pun since it's finally organized! Fun fact: the Dewey Decimal System, still used in libraries today, was invented in 1876 by 21-year-old Melvil Dewey to keep shelves exactly this tidy.