Is it all right to make a toddler cry, even if it's for art's sake? Portraitist Jill Greenberg discusses her controversial new show in Los Angeles, reveals how she made the little one* cry, and, most important, explains why she did it.

The biggest photography book of the year, so far, has to be David LaChapelle's new career retrospective, provocatively titled Artists and Prostitutes. Here's a sneak peek, plus an exclusive interview with one of the top photographers of our time.