A "Must-Have" for nature and bird lovers alike. 50 assorted beauties in high-quality grayscale printed on 1-side only with watermark on the back for artist signature and date completed. The front & back covers are a large collage of the pictures included inside the book but in full color (instead of grayscale) so you know what the birds are actually suppose to look like. You may choose to color as Mother Nature intended for a very realistic approach to your artwork or choose to color in a creative fashion designing your own style of bird. There is no right or wrong...just have fun and relax ...