Ed Emberley Drawing Book Set
Here are two very cool how-to-draw books for children and their nonartistic adults.  Fingerprint is a complete manual for drawing almost anything, using ink pads, fingers and a few quick lines.  Animals will show you how to create the whole animal kingdom with 3 shapes, 10 letters, 3 numbers, and 6 scribbles.  Both are endless fun for rainy afternoons with your kids, and both build confidence and a love of drawing.  Two paperbacks.