Contact and Credits


To give comments, make suggestions, or to ask questions: write to me at;


I have had delightful editorial and technical help from many dear friends and family. Thank you;

Alison Corner

Joe Edelman

Kimberly Edelman

Sidni Greenblat

Ann Hamilton

Gary Lewis

Ted May

JoAnn Parent

Allen Pope

Veronica Quarry

Al Vandam




Boles, Martha, and Rochelle Newman. Universal Patterns, 1992, Pythagorean Press

Venters, Diana, and Elaine Krajenke Ellison. Mathematical Quilts, 1999, Key Curriculum Press

Wenninger, Magnus Polyhedron Models. 1996, Cambrige University Press