We have read the stories of those who have "crossed" lines of race and class and culture. But few have written of crossing-completely and entirely-the gender line. Crossing is the story of Deirdre McCloskey (formerly Donald), once a golden boy of conservative economics and a child of 1950s and 1960s privilege, and her dramatic and poignant journey to becoming a woman. McCloskey's account of her painstaking efforts to learn to "be a woman" unearth fundamental questions about gender and identity, and hatreds and anxieties, revealing surprising answers.