IMPORTANT - KINDLE & EBOOK edition of this coloring book is an ART BOOK and is NOT intended to be used as an APPLICATION that is capable of coloring on any device. THIS BOOK IS A PREVIEW – The sole purpose of this preview is to show the designs that are available in the physical copy of the book. These superheroes need your help! Color them to make them ready to beat the bad guys. Coloring is an action-filled activity that requires your dedication to complete the task. It is highly recommended in terms of teaching children about relaxation and patience. You have the freedom to choose the colors you want to use so there's a certain sense of accomplishment after each image is beautifully rendered.