Book excerpt: Pattern and Palette Sourcebook 3 is a desktop library of colors and patterns that addresses the professional’s real-world needs in working with harmonies and contrasts. Divided into 6 style sections, the book provides readers with 15 appropriate colors for each section, which are incorporated into 25 different patterns in each section, shown in 6 or 8 color variations each. This enables readers to see the dramatic effect colors have in design, and helps them to better understand how to use color effectively. This essential handbook demonstrates ways of creating patterns that are distinctly unique, yet hold together in a group.