Masters of Spinjitzu : Character EncyclopediaBook - 2012
"Learn everything there is to know about the world of LEGO Ninjago. Meet all the amazing minifigures, from the brave Ninja to their deadly enemies, the Skeletons and the Serpents. Discover the secrets of their mystical weapons and amazing vehicles, and find out what it really takes to be a Ninja."--P.  of cover.