Grateful Ninja learns all about cultivating an attitude of gratitude.Find out what happens in this comedic book about developing a heart of thankfulness.Life is hard It's even harder for children who are just trying to figure things out.The new children's book series, Ninja Life Hacks, was developed to help children learn valuable life skills. Fun, pint-size characters in comedic books easy enough for young readers, yet witty enough for adults.The Ninja Life Hacks book series is geared to kids 4-10.Perfect for boys, girls, early readers, primary school students, or toddlers.Excellent resource for counselors, parents, and teachers alike.Collect all the books and toys in the Ninja Life Hacks collection Ninja Life Hacks Emotions and Feelings Box SetNinja Life Hacks Growth Mindset Box SetNinja Life Hacks Leadership Box SetNinja Life Hacks Mover and Shaker Box SetNinja Life Hacks Self-Management Box SetNinja Life Hacks Self-Awareness Box SetNinja Life Hacks Decision-Making Box SetNinja Life Hacks Social Awareness and Relationship Skills Box SetNinja Life Hacks Ninjas Go