David Bowie’s mercurial assortment of alter egos — from Ziggy Stardust and Aladdin Sane to The Thin White Duke and the more recent Lazarus identity that posthumously inhabits Blackstar, his final album and first Billboard No. 1 — will be remembered just as much for their songs as their visages. No one captured Bowie’s unbridled devotion to his craft as poetically as Mick Rock, Bowie’s friend and official photographer between 1972-1973. (Mick Rock. The Rise of David Bowie is set to be published by Taschen next month.) Whether painting his face backstage or stomping around a stage in heels, in front of Rock’s camera, Bowie revealed himself as both an otherworldly man from mars and also completely down to earth. Here, Rock reflects on their historic partnership.