ASL review for: book

Meaning: a handwritten or printed work consisting of pages glued or sewn together along one side and bound in covers.

As a noun, the movement of this sign is formally twice. However, the movement may be once in effect of phonological co-articulation even if it's noun in sentence.

Two repetitions.

Plural noun: books in a pile; a stack of books.

Related signs: READ, BOOKCASE, SPINE (a part of the book).