The author claims that in his explanation of the aerodynamics of a moving body he uses only "layman's terms" and this is true for the first few introductory chapters. The book does then go on to get increasingly complicated and in order to understand it fully you need to thoroughly interested in the subject and probably a Maths degree from Cambridge. A general understanding of the subject is, however, given simply, at the beginning of the book and this itself is worth the fee. Further on the book shows how the development of aerodynamics has progreesed through time to now explaining why modern vehichles look as they do. Reference is often made to Formula 1, Indy and drag racing in explaining concepts. It is in these fields that the understanding developed by this book will be truly helpful as a variety of physical theories are introduced. These include a moving body's drag coefficient, centre of pressure and neutral steering point : useful in understanding over/understeer along with venturi tunnels which in the early 80's produced ground effect suction downforce and hence joined a whole host of developments to be banned by the formula 1 generals. If you are only a glancing fan of motor-racing then this book may not be for you. However, if you are truly interested or even work, or wish to work, in the motor racing field where aerodynamics play a crucial part then this book will provide the crucial understanding that will only serve to benefit the way you view racing in the future.