Ever wonder what Bill Gates was like as a kid? His new memoir, Source Code: My Beginnings, gives us a peek into the tech mogul’s early years—and it’s not all computer screens and code.

The book, the first in a planned three-part series, takes readers back to Gates’ childhood in 1950s and ’60s Seattle. Picture this: a young Bill sneaking out his window at night—not to cause trouble, but to write code. Yep, even back then, he was a tech whiz in the making.

But Gates’ story isn’t just about computers. He shares nostalgic tales of jigsaw puzzles, gunnysack races, and hanging out with his grandmother, who taught him how to dominate at card games. (Spoiler: he was obsessed with winning, even as a kid.)

The memoir also highlights his knack for hustling. At just 8 years old, Gates sold 179 pounds of nuts to raise money for the Cub Scouts—proof that his competitive streak started early.

While the book mostly sticks to his pre-Microsoft days, it’s a charming and often funny look at how one of the world’s most famous tech icons grew up. Gates’ voice is warm and self-deprecating, making it an easy and enjoyable read.

Fans of Gates or anyone curious about the man behind the Microsoft empire will find Source Code both fascinating and relatable. After all, who doesn’t love a good coming-of-age story?

So, if you’re in the mood for a mix of nostalgia, humor, and tech history, this memoir might just be your next favorite read.