Jimmy Nilsson is the owner of the Swedish consulting company JNSK AB. He has been working with system development for 13 years (with VB since version 1.0) and, in recent years, he has specialized in component-based development, mostly in the Microsoft environment. He has also been developing and presenting courses in database design, object-oriented design, and so on at a Swedish university for six years. Jimmy is a frequent speaker at Fawcette and Wrox Conferences and has written numerous technical articles. Even so, he considers himself to be mainly a developer.