This publication documents Gerhard Richters experiment of taking an image of an original abstract painting and dividing it vertically into two. Each divided part is divided again, mirrored and repeated, producing ever narrower strips, which results in patterns. A total of 238 selected patterns are presented here. Regarded as one of the most influential and pre-eminent artists of our time, Gerhard Richter has involved himself personally and directly with this publication. His work is reproduced here with superlative attention to detail, colour and print quality. The result is a book that will satisfy the most demanding and passionate of the artists discerning admirers.