Melinda French Gates—philanthropist; billionaire; and former spouse to an original tech titan, Microsoft cofounder Bill Gates—is, in the way we think about billionaires today, something of an anomaly.

Melinda French Gates is set to release her first memoir, The Next Day: Transitions, Change, and Moving Forward, on April 15. According to a press release, the book will provide a “rare window” into the 60-year-old philanthropist’s life.