Mariam Gates Mariam Gates holds a master's in education from Harvard University and is the creator of the renowned Kid Power Yoga. She is the author of the bestselling Good Night Yoga and many other yoga-related books for children. She lives in Northern California. For more, see mariamgates.com. Leigh Standley LEIGH STANDLEY is the artist and owner of Curly Girl Design, Inc. She lives in Boston. For more, visit curlygirldesign.com.