Principles of Pattern Design by Richard M. Proctor 280 superb illustrations depict networks on which repeat patterns can be arranged: square, brick and half-drop, diamond, triangle, ogee, hexagon, scale, and circle. Eye-catching pattern samples from textiles, macrame and embroidery, more.
Abstraction in Art and Nature by Nathan Cabot Hale Stimulating, thought-provoking guide to finding rich sources of creative abstraction in lines of growth and structure, water and liquid forms, weather patterns, earth colors, many other natural elements. Over 370 photographs and other illustrations.