Book excerpt: These fabulous, whimsical paintings, created for his own pleasure and never shown to the public, show Geisel (a.k.a. Dr. Seuss) in a whole new light. Depicting outlandish creatures in otherworldly settings, the paintings use a dazzling rainbow of hues not seen in the primary-color palette of his books for children, and exhibit a sophisticated and often quite unrestrained side of the artist. 65 color illustrations.