inscription

[curley]

What name is given to the inscription at the end of a book

[karstdejong]

Colophon: An identifying inscription or emblem from the printer or publisher appearing at the end of a book.

[incitatus]

Indeed. Or occasionaly postlog. Or epilog. It depends which kind of inscription you mean. Authors write post or epilogs...EM Forster wrote a long one called A View Without a Room" for the reprint of A Room With A View.