In this exclusive interview with CBS News’ Carrie Johnson, filmmaker Josh O’Brien explores the changing landscape of male nudity photography, and what that means for our understanding of what it means to be a man.

O’Brien, a former editor of Men’s Journal magazine, is the author of the forthcoming book, “Beneath the Surface: A Man’s Guide to Being a Man,” which will be released on Sept. 19.

His new film, “Invisible Men: An Unseen History of Male Nudity Photography,” will be available for streaming on Sept 19.

O’Briens latest documentary, “Men Are Not Ourselves,” will screen at the Tribeca Film Festival on Sept 26.

He’s also co-producing a doc on the subject, “Dancing Naked,” with the same producer.

O’,Brien was the editor of a few newspapers before becoming a feature filmmaker.

His most recent film, about the rise of the first-wave feminist movement in the late 1960s, “Naked: The Untold Story of the American Sexual Revolution,” won an Oscar for Best Documentary Feature.

O’,Brien’s previous film, “‘Men Are not Ourselves,'” won a Sundance award for Best Film Editing.