One technique for helping children adjust to changing role models is bibliotherapy--the use of children's books to facilitate identification with and exploration of sex role behavior. Confronted with change in various social systems, particularly the family, children are faced with conflicts concerning their sex role development. The process through which children learn to identify with a particular sex role is explained by learning, psychoanalytic, and cognitive-developmental theories. A brief outline of the bibliotherapeutic process and techniques for implementing bibliotherapy are discussed. A selected list of current preschooler's literature dealing with sex role development is presented. (DST)