Bill GatesMicrosoft co-founder and philanthropist Bill Gates talks with a colleague before the Berkshire Hathaway annual meeting in Omaha, Nebraska, U.S. May 6, 2017.REUTERS/Rick Wilking

Bill Gates loves to read

The billionaire co-founder of Microsoft and chair of the Bill and Melinda Gates Foundation reportedly reads around 50 books a year, and he chronicles his literary adventures on his blog, Gates Notes

Gates’ book recommendations have included historical accounts like Walter Isaacson’s biography of Leonardo Da Vinci, poetic works of fiction like Maylis De Kerangal’s “The Heart,” and complex yet fascinating nonfiction works like  Gretchen Bakke’s “The Grid,” which is all about our energy infrastructure.

Reading Gates’ top picks is guaranteed to make you smarter.

The following list is culled from four years of Gates’ summer reading lists and book reviews, and it’s presented in no particular order. 

Although Labor Day may signal the start of fall to some people, there are still a few weeks of summer — the first day of autumn isn’t until September 22. 

So it’s not too late to enlighten yourself with these 21 Gates-approved reads: