Rod Stephens started out as a mathematician, but while studying at MIT, he discovered how much fun programming is and he's been programming professionally ever since. He's a longtime developer, instructor, and author who has written more than 250 magazine articles and 37 books that have been translated into languages around the world.

During his career, Rod has worked on an eclectic assortment of applications in such fields as telephone switching, billing, repair dispatching, tax processing, wastewater treatment, concert ticket sales, cartography, optometry, and training for professional football teams. (That's U.S. football, not one of the kinds with the round ball. Or the kind with three downs. Or the kind with an oval field. Or the indoor kind. Let's just say NFL and leave it at that.)

Rod's popular C# Helper website (www.csharphelper.com) receives millions of hits per year and contains thousands of tips, tricks, and example programs for C# programmers. His VB Helper website (www.vb-helper.com) contains similar material for Visual Basic programmers.

ABOUT THE TECHNICAL EDITOR

John Mueller is a freelance author and technical editor. He has writing in his blood, having produced 123 books and more than 600 articles to date. The topics range from networking to artificial intelligence and from database management to heads-down programming. Some of his current books include discussions of data science, machine learning, and algorithms. He also writes about computer languages such as C++, C#, and Python. His technical editing skills have helped more than 70 authors refine the content of their manuscripts. John has provided technical editing services to a variety of magazines, performed various kinds of consulting, and he writes certification exams. Be sure to read John's blog at http://blog.johnmuellerbooks.com. You can reach John on the Internet at [email protected]. John also has a website at www.johnmuellerbooks.com.