Earth Ninja shows us how one little ninja can make a difference in the world by practicing three simple life habits. Find out what happens in this fun book about the impact we each have on the earth. ¿ 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, young readers, primary school students, or toddlers. Excellent resource for counselors, parents, and teachers alike. Collect all the Ninja Life Hacks books! To download fun, free printables, visit the author's profile.