You can't learn how to repair a car by reading this book, but you can learn something equally important—how to inspect a new or used vehicle to make sure that what you are about to buy is as good as the seller says it is.
Or you can use it as a preventive maintenance guide for checking out your own vehicle. Knowing the condition of the car you drive, whether it's under warranty or not, will give you time to repair things before they reach the emergency stage—or leave you stranded on the road.