William Stockman was on everyone's list of the most significant contemporary artists in Denver right up until he split around five years ago. He returned not long after, but quit making art while he made a living. In 2006 he went back into the studio, and it must have been just like riding a bike, because he picked it up again almost immediately, as proved by Nothing Is Hiding, his solo this past winter at the Singer Gallery put together by Simon Zalkind. Made up of poetically composed figural paintings and drawings created just since he relaunched his career, the show marked Stockman's triumphant return.