When Tim Gunn was writing his first book, the designer Diane von Furstenberg told him to never lose his voice as an educator. Gunn, a fashion consultant and the cohost of the television program Project Runway, had been struggling with the assignment of writing a self-help, makeover-oriented book instead of a history of fashion, which he originally wanted to do. He hated dressing books and body types. Gunn must have taken the advice he often gives to others—trust your gut and your instincts and know who you are—and he pulled through. In other words, he made it work.