Too many indicators kill the trade and the trader. But it is important to know the basic/ important ones. I think TA module by NCFM is really a good one. It has all the right content in simple language.
One can download the material from here
Steve Nison- Japanese candlestick charting techniques
For all you Indicators information you can reffer to website Investopedia.com
1) One of the most popular books to start with is Technical Analysis of the Financial Markets by John Murphy. It's a comprehensive book which covers the field of technical analysis and indicators .
2) To remain updated on latest indicators you can have a look at www.traders.com, where experts explain their indicators and the codes are also available for free.
You can check this link for books: http://tradingqna.com/754/which-are-the-top-books-one-should-read-become-better-trader?show=754#q754