Arnold Tubis is a retired physics professor who was a faculty member at Purdue University in West Lafayette, Indiana from 1960 to 2000 (9 years as department head). He now lives in Carlsbad, California. Origami has been an avocation of his since the early 1960s and his models have been exhibited in the USA, Japan, Europe, and Israel. He is the author or co-author of five other books on origami and 17 papers on origami in K-12 mathematics education. He is currently focused on designing models that require, at most, a low-intermediate folding skill level, and can be used to enrich the teaching of geometry in middle school and high school. He is the coordinator of the Greater San Diego Origami Group.