Cover, preface and table of contents for Ralph Griswold's draft web-published book on applying elementary mathematics and computation to weaving. The preface (dated September 20, 2006) explains the work-in-progress status and thanks Ruth Blau, Marg Coe and Gregg Townsend. The contents list links to separate PDFs on twill and satin counters, sequence drafting, name drafting, crackle and shadow weave, pattern operations, numeric sequences (Fibonacci, Morse-Thue, Farey, etc.), L-systems, cellular automata, Boolean design, and the Painter's Weaving Language.