Hitting bookstores yesterdat, LIFE Unseen: Johnny Cash – An Illustrated Biography is a 192-page collection featuring rare and never-before-seen photos of the Man in Black from the archives of Sony Music Entertainment (see a gallery of select photos above).

The book also includes interviews with Cash and his family, including June Carter Cash, and reminiscences by his daughter Rosanne Cash and son John Carter Cash.

"I'd seen a lot of these photographs, but the ones I hadn't seen before were really moving to me," Rosanne Cash said in a press statement about the book. "They weren't just kind of stock Johnny Cash pictures, but showed some side of him, some depth, that hadn't really been captured before. And of course I really liked some ironic things, fun things, like him in those black-and-white loafers, and he's holding his Gibson, his Johnny Cash Gibson, and he's in the pale blue socks."