BOS 18 Geometric Origami by Philip Shen, written by Paul Jackson. A superb introduction to the geometric designs of Philip Shen, which have proved influential on so many designers. The booklet includes an article on Shen’s philosophy.

Introduction / How to construct a triangle/pentagon/hexagon / Pinwheel / Pavilion / Chinese ding / Incense burner / Form / Cup / Star / Dish-1 / Dish-2 / Container with lid / Cube / Bowl / Flower / 10 pointed star / Tetrahedron / Bibliography