I got this book a few years ago, and for the 917 enthusiast, it’s one of the best books out there. Soft cover and with LOTS of pictures, the great Karl Ludvigsen offers a plethora of technical details on the car. In fact, he focuses more on technical aspects than on race history. You still can find it on Amazon, however like most good paper books nowadays, it won’t come for cheap. Well, I can’t say it is really expensive, yet I would say the price is a bit high for a soft cover. So, is it worth it? For the casual gearhead maybe not, though for the 917 fanboy it’s awesome.