The Book of Knowledge and Wonder is a memoir about claiming a legacy of wonder from knowledge of a devastating event. In some ways it has the feel of a detective story in which Steven Harvey pieces together the life of his mother, Roberta Reinhardt Harvey, who committed suicide when he was eleven, out of the 406 letters she left behind. Before he read the letters his mother had become little more than her death to him, but while writing her story he discovered a woman who, despite her vulnerability to depression, had a large capacity for wonder and a love of familiar things, legacies that she...