appointment calendar vs appointment book

appointment calendar and appointment book both are nouns.

Word	Noun	Adjective	Verb	Adverb
appointment calendar	Yes	No	No	No
appointment book	Yes	No	No	No

As nouns, appointment calendar and appointment book are synonyms defined as:

appointment calendar and appointment book: a book containing a calendar and space to keep a record of appointments

appointment calendar (noun)	appointment book (noun)
a book containing a calendar and space to keep a record of appointments	a book containing a calendar and space to keep a record of appointments