Adult coloring books have been having a moment. A trendy take on the childhood classic, they are filled with whimsical scenes of landscapes and gardens or interconnected geometric patterns rather than the old cartoon characters. And while picking up some colored pencils and trying to stay inside the lines (or not, no judgment!) may feel a bit juvenile, art therapy is actually a well-regarded treatment style. Of course, sitting at your desk coloring isn’t quite the same thing as working with a licensed art therapist, but you can still reap some major benefits from a good old-fashioned coloring session.