It starts with an anecdote about a child Bailey calls "Danny". Bailey writes of Danny's mother, who has been frustrated by other therapists she has seen about her son's "feminine" behavior. Bailey discusses psychologist and sexologist Kenneth Zucker's work with children whose parents have noticed significant gender-atypical behaviors. Bailey uses the anecdote about Danny to describe gender identity disorder, a label applied to males with significant feminine behaviors and females with significant masculine behaviors, such as cross-dressing. For example, this class includes boys that prefer to play with dolls and regularly identify with female characters in stories or movies, and girls that prefer to play with toy cars and identify with male characters. This section of the book also discusses some case studies of men who were, for varying reasons, reassigned to the female sex shortly after their birth, and emphasizes the fact that, despite this, they tended to exhibit typically male characteristics and often identified as men.