Stephen J. Ethier and Christine A. Ethier have been married for 23 years. Both born and raised in Southern Ontario, Stephen's initial training was in mechanical engineering followed by an entire life spent in various kinds of computer education while Christine was initially educated in psychology and education and has several years training in communication and journalism. The pair have been writing textbooks on computer aided drafting and design, animation, and various related topics for Prentice Hall for the past sixteen years and have developed quite a list of titles for the educational and professional market. They live in the maritime region of eastern Canada with Seth, Zachary, Frodo and Contessa, their four cats, and Terra, their one grown up daughter who is studying journalism.