with hundreds of pages, it will show you how to distinguish any problem from an oil change to a transmission swap and how to fix it on your own. it is not a cure all for a mediocre product. you can apply this concept into one of the most important parts of the house, the bedroom. some are creative, others are hilarious, while others are lovely. but to make sure your socks match, you also need strong light for getting dressed in the morning. the hotel staff took the trouble to check the air-conditioner, only to confirm that it was in perfect working order. 