noun
complimentary copy; gift book
A book presented as a gift, often by the author or publisher; can be a free copy given for review or as a token of appreciation.
著者から贈呈本をいただいた。
I received a complimentary copy from the author.
この本は出版社からの贈呈本です。
This book is a gift copy from the publisher.
寄贈本 is a donated book, usually to a public collection, whereas 贈呈本 is more personal and often given directly by the creator.
Compound of 贈呈 (presentation, gift) and 本 (book). The exact historical derivation is uncertain, but the word follows standard Sino-Japanese compounding patterns.