Colored Pencil Painting Bible: Techniques for Achieving Luminous Color and Ultrarealistic Effects by Alyona Nickelsen This book is a great resource for color pencil enthusiasts and I highly recommend it if you're purchasing Prismacolors, Caran D'Ache or Derwent colored pencils. It will give you advice on layering pencil and blending it so you can create custom colors. Put this on your gift list, it's worth the expense!