I bought it for my brother's birthday . It just fell open and I began thumbing through it . I would highly recommend this to any one who is interested in turbocharging . This book truely has somthing for everyone . If you are and engineer and want to know the calcs and theory its there . It is very easy to read and covers about everything you need to know . I think I will learn quite alot from this book . Turbo magazine is just running out of info for me . Sport Compact car is much more in depth I have been following the turbo nissans for a while . Mabey this book will keep me from having piston paperweights .