Looking around online it is possible to find a plethora of information about the stock market. Due to this increase of information, there are also a lot of stock performance books available as well. The problem comes when you are trying to decide which has the best information to really follow. Typically, most consumers find better and more up to date information on the internet. The stock performance books can often be helpful in trying to analyze patterns, but due to the lull between writing and actual publishing, the information be outdated before even printed.