US Air Law can for the most part be found on line:
http://www.airweb.faa.gov/Regulatory...e?OpenFrameSet
The A&P consists of a three part written exam, followed by practical and oral examinations. Books containing all the possible questions and answers are obtainable. Not as crazy as it sounds as there are a few thousand to choose from and only a few hundred selected for the examinations, and a high pass percentage. You have to pass the written exam first, then the oral and practical examiner will determine if you know what you are talking about, or merely have a good memory.
The first hurdle however is getting permission from the FAA to take the examination in the first place. You need certification of the required experience, either by training and/or time in the industry. Employers letters not accepted.