The Book of SpinjitzuBook - 2017
From Master Wu: My father, the First Spinjitzu Master, taught me the ways of Spinjitzu and the wonders of Ninjago. Since I was a boy I have recorded these lessons so that I may teach others. Parts of this book are from journals I kept as a child and young man (yes, I was young once!) and others have been written in as I have learned them.
Publisher: New York, NY : Scholastic Inc., 
Characteristics: 96 pages : illustrations (chiefly color) ; 23 cm