Steve Nisan is the Candlestick guy ! http://www.amazon.com/gp/product/0735201811/103-1874905-2950213?v=glance&n=283155 Also Nihabashi (ET member) is our rsident Candle expert.
If you want to learn the basics..try www.stockcharts.com there is an area called chart school. another is www.prophet.net lots of useful stuff there- they have a T/A glossary.
See, among the others, http://www.candlestickchart.com/glossary.html http://www.tofuexp.com/vh/stockbose/ta/candlestick
Nihabashi's comments on candlesticks are very good. Also, Sephen Bigalow's www.candlestickforum.com is another good alternative as well.
In addition to Stephen Bigalow's books and website, another good choice is Gregory Morris's "Candlestich Charting Explained".