John Smiley, MCP, MCSD, MCT has been programming and teaching for more than 25 years, and has written over 15 books on Computer Programming. He is the President of John Smiley and Associates, a computer consulting firm serving clients both large and small in the Philadelphia Metropolitan area. John is also an adjunct professor of Computer Science at Penn State University, Philadelphia University, and Holy Family University, and also teaches in a variety of Internet venues.