Johnathan James and the Whatif Monster Plush
Don't Feed The WorryBug (Soft Cover Edition)
Moody Cow Meditates
A Boy and a Bear: The Children's Relaxation Book
A Tale of Two Beasts
A Terrible Thing Happened
Peaceful Piggy Meditation (Albert Whitman Prairie Books)
Listening To My Body: A guide to helping kids understand the connection between their sensations (what the heck are those?) and feelings so that they can get better at figuring out what they need.
My Day Is Ruined!: A Story Teaching Flexible Thinking (Executive Function)