Craig Castelaz is a full-time husband and father who programs, teaches, and writes in his second full-time job. His career began when CP/M was the dominant microcomputer operating system, and Microsoft sold Z-80 cards for the Apple II to help make ends meet. He has held positions ranging from director of development to independent contract programmer. His programming experience spans the fields of education, health care, human resources, transportation, and component management. Craig has a Masters in Information Systems from the Weatherhead School of Management at Case Western Reserve University and is adjunct faculty at Cuyahoga Community College.