around July 3th.

the knowledge in a physical book need not be a composition, or even a book.

Books can only contain pictures, prints or photos, crossword puzzles or paper-cut dolls. In a physical book, a page can be left blank, or it can contain a set of abstract lines to support entries, such as in an account book, appointment book, signature book, notebook, diary or sketch book. The pages of some physical books are thick and strong enough to support other physical objects, such as scrapbooks or photo albums. Books can be distributed in electronic form as e-books and other formats.