First off for someone like myself who failed algerbra in High School, I understand the information presented in this book. The Author writes as if he himself was sitting in front of you explaining the formula's, uses and relations. For anyone that wants to know that much more about everything about cars, this is the book to read and keep close. If two technicians sat infront of me with identical acomplishments and credentials, but one cared to take it to the next level and mathamaticaly know WHY a ram air induction is nothing more than an intake with a snorkal going directly to outside air, I think I would pick him