Art Therapy Coloring Books for Adults Living In Color Portable Spiral Bound 4 Book Bundle by Color Factory 4 Piece Bundle: 4 different Living in Color Art Therapy Coloring Books For A Total of 400 Coloring Pages Each book is 8-1/2 x 5-3/4 inches spiral bound for a flat coloring surface and the perfect size for take along books Each book has a total of 100 different coloring pages for a total of 400 coloring pages Bring out your imagination, arouse your senses and creativity, and as you become engaged in the pleasurable, soothing activity of coloring, it calms you and instantaneously starts reducing your stress level Sit back and relax with these perfectly portable take along books