Katherine had liked Michael when they met at a party, she was delighted when he asked for a date, and she knew it was only a question of time until they became lovers…. They are deeply in love, wholly committed. Forever. And then, due to parental insistence, Kath goes to work in a summer camp and finds she is attracted to another man. And that's it—the end of forever. No preaching (Blume never does) but the message [of Forever …] is clear; no hedging (Blume never does) but a candid account by Kath gives intimate details of a first sexual relationship. The characters and dialogue are equally natural and vigorous, the language uncensored, the depiction of family relationships outstanding. (p. 106)

Zena Sutherland, in Bulletin of the Center for Children's Books (© 1976 by the University of Chicago; all rights reserved), March, 1976.