A short article from a handweavers' bulletin that discusses how weaves might be classified and traces a logical derivation of weave structures. It begins with tabby and moves through basket weave, 1:2 and 2:2 twill, herringbone, wave and diamond twills, then crackle and overshot, with summer-and-winter described as crackle on opposites. Two small figures illustrate the transitions, and the article ends with a note that it is to be continued.