I remember having this book. I was probably 14 or 15 years old, and I was just getting into aviation after being given my first flying lesson. I had a copy of MS Flight Simulator, and I had taught myself some C++, but of course the content of the book was a bit beyond my capacity at the time. It's nice to relive the excitement of getting this book with the idea of being able to make my own flight sim. Of course, the sim they make in the book, IIRC, was nigh unplayable!