This is technically a watercolor book, but I think it is useful for anyone interested in drawing horses. It could be easily adapted for those who use colored pencils.
There are some good technical pages on the horse's skeletal and muscular structure, drawing the eyes from different positions, some info on photographing horses, creating photo composites from different poses, and a useful color palette.
I'm a little partial to this book as it is the work of Janet Griffin-Scott, the illustrator of my Sonrise Stable series. :)
* One Amazon review criticism is that the sample projects consist of similar-colored horses. That is true. Other than one gray pony, the other horses in the book are all bays or chestnuts. A little more variety in color would have made it even better, but I still think it's a useful book.
Also, the photos make the book look huge. It's 6.5" x 9.5" as noted below.
Paperback: 64 pages
Publisher: Walter Foster
ISBN: 978-1600582097
Product Dimensions: 6.5 x 0.2 x 9.5 inches