KA Stroud Engineering Mathematics was one of the books on my first-year reading list when I studied for an honous degree in Applied Physics with Microelectronics. Today, sixteen years later, my second edition 'Stroud' is the ONLY textbook from my college days that remains with me, and close at hand. This is particularly amazing when you consider that, immediately upon graduating, I moved into sales and marketing, and today, manage marketing for the Americas for a large information technology services provider. I don't really have much call for solving second order differential equations, but, I keep this book. It's so incredibly well written, and it genuinely makes intermediate mathematics simple to learn.