We found one dictionary that defines the word book squares:

General (1 matching dictionary)

1. book squares: Merriam-Webster

▸ Words similar to book squares ▸ Usage examples for book squares ▸ Idioms related to book squares ▸ Wikipedia articles (New!) ▸ Words that often appear near book squares ▸ Rhymes of book squares ▸ Invented words related to book squares