Source Code: My Beginnings is a memoir by Bill Gates, published by Vintage (Penguin Random House) on February 4, 2025. This #1 New York Times bestseller is Gates' deeply personal account of his formative years, tracing how his childhood, early passions, and key friendships shaped him long before Microsoft. The 336-page paperback covers his principled grandmother and ambitious parents, the sudden death of his best friend, his discovery of coding in the dawn of the computer era, and the midnight escapades at a nearby computer center that ultimately sparked a revolution.

The book has been praised by The Wall Street Journal, The New York Times, Financial Times, and Wired for its candid, self-deprecating tone and richly detailed storytelling. It is the first of three planned memoirs by Gates. ISBN: 9780593687468.