John Blankenship taught computer and electronic technology for 33 years at the college level. He has also worked as an engineer and as an independent consultant. He received a B.S. in electrical engineering from Virginia Tech, a masters in electronic engineering technology from Southern Polytechnic State University, and an M.B.A. from Georgia State University.

This is his sixth book.Samuel Mishal is a software engineer and systems analyst. He worked as a consultant for major government departments and businesses around the world. He taught mathematics and computing at the college level. He received a B.S. in electronics engineering technology from DeVry University, a bachelors in computer science from the University of Western Australia, a masters in engineering science from Oxford University, and a masters in structural engineering from Imperial College London.