3 years & up. The Yoga for Kids book set helps children learn how to use yoga in their everyday routines. They can get their morning started by being a volcano or work through the day by balancing with a bear. To unwind children can work on their pretzel pose or do a star pose with frog. These books have simple to follow poses for children and adults as you go through each story. Set of 4. Hardback and paperback mix.