Jef Raskin (deceased, 2005) was a user interface and system design consultant based in Pacifica, California. Hewlett-Packard, IBM, Motorola, NCR, Xerox, Ricoh, Canon, McKesson, and AT&T all numbered among his clients, along with dozens of less-well-known firms. His articles have been published in over forty periodicals, including Wired, Quantum, IEEE Computer, and the Communications of the ACM. He is best known for having created the Macintosh at Apple and the Cat work processor for Canon. See more at www.jefraskin.com.