Robert J. Lang. The Complete Book of Origami: step-by-step instructions in over 1000 diagrams. Dover Publications, Mineola, NY. Copyright 1988 by Robert J. Lang. ISBN 0-486-25837-8 (pbk.)Pages 1–30
Peter Engel. Origami from Angelfish to Zen. Dover Publications, Mineola, NY. Copyright 1989 by Peter Engel. ISBN 0-486-28138-8 (pbk.)Pages 1–88
Robert J. Lang. Origami Design Secrets: mathematical methods for an ancient art. A K Peters, Natick, MA. Copyright 2003 by A K Peters. ISBN 1-56881-194-2 (pbk)
Tomoko Fuse. Unit Origami: multidimensional transformations. Japan Publications, inc. Tokyo. Copyright 1990 by Tomoko Fuse. ISBN 0-87040-852-6