noun
complimentary copy
A book given free of charge, typically by the author or publisher, often for review or as a gift.
著者から進呈本をいただいた。
I received a complimentary copy from the author.
献本 is a broader term for donating or presenting a book, while 進呈本 specifically refers to the complimentary copy itself.
Compound of 進呈 (presentation, gift) and 本 (book).