One of the few indisputable geniuses of pop music, Sly Stone is a trailblazer and a legend. He created a new kind of music, mixing Black and white, male and female, funk and rock. As a songwriter, he penned some of the most iconic anthems of the 1960s and ’70s, from “Everyday People” to “Family Affair.”

As a performer, he electrified audiences with a persona and stage presence that set a lasting standard for pop-culture performance. Yet his life has also been a cautionary tale, known as much for how he dropped out of the spotlight as for what put him there in the first place. People know the music, but the man remains a mystery.

In Thank You (Falettinme Be Mice Elf Agin), his much-anticipated memoir, he’s finally ready to share his story—a story that many thought he’d never have the chance to tell.