Commercial photographers make behind the scenes videos—especially the famous ones. Then the rest of us watch those videos to learn not only how to interact with a celebrity subject, but also how to light when you’re shooting, say, a cover of Vogue magazine. Well superstar photographer Annie Liebovitz recently had a behind the scenes Vogue cover shoot with pop star Rihanna given the annotation treatment by David Hobby at his Strobist blog. When he does these annotations, Hobby watches BTS videos and points out important things for us photographers to pay attention to during videos. It’s kind of like a DVD commentary track in print. Good stuff, definitely—both to see how amazing Annie’s approach is, and how simply and beautifully she makes great photographs. Let the haters hate; That is one super-talented photographer.