Mrs. Stolz is adept at writing in first person and has created, in [Second Nature's] Anne, a sympathetic and real person. Anne's relationships to her family, her understanding of the need for tolerance and acceptance in maintaining friendships, and her painful adjustment to unrequited love are told with keen insight. The picture of a group of young people, their shifting intragroup relationships and the different ways in which each meets the common problems of courtship, love and adult status, is drawn with nuance and with strength. All the members of Anne's circle are described with candor and are quite realistic. The style is natural and the action consistent with the characters. (p. 114)

Zena Sutherland, in Bulletin of the Center for Children's Books (published by the University of Chicago), June, 1958.