Now this is a unique coloring book! It consists of images 'hidden' within varied dots and lines on the page. At first glance at the page, you'll just see a bunch of dots, or lines that vary in width, but once you start coloring the images begin to emerge. It's fun!
The images are on one side of page, with a black back page, so there is no bleed-through if you use markers. I would recommend a fine-tip marker or finely-sharpened colored pencil. The dots and lines are small. If you like detail, this is the book for you!
Also, the pages are not perforated, but each image ends before the spine so you can cut or tear out. The book is thin but you can get a good 'spine bend' so it lays flat when coloring.
[Also of note: there is a 'key' at the beginning of the book that shows each of the images filled in, so if you don't want a surprise, you can select your page that way.]