A knowledge of how to design repeat patterns is an essential skill for any designer. Today, repeat patterns are seen almost everywhere but they also reach back through the history of design and across all continents and cultures. They are used in tiling, wallpaper, textiles, wrapping and packaging, backdrops for text or illustrations in graphic media, jewellery and architectural details. They are created in a wide range of media in both two and three dimensions. Most modern pattern design is done on computers for speed and accuracy but historically it was a craftsman like skill that identified some of the greatest artists and artisans of the day.