Since the question of which books to read are asked frequently on this thread, putting up a list of books I have found very useful in my journey.
Fundamental analysis.
One up on wall street by Peter Lynch.
Five rules for successful stock investing. by Pat Dorsey.
Zebra in lion country by Ralph Wanger.
Technicals
Technical analysis of stock trends by Edwards and Magee. (there are many others but essentially most of them cover same topics, so one can pick and choose)
Developing an investment style.
For techno funda approach
How to make money in stocks by William o neil.
The next apple by Ivayly Ivanov.
Think and trade like a stock market champion by Mark Minervini
(Trade like a stock market wizard by Minervini)
Above should suffice for a beginner.
And the importance of repeated readings of these books should be stressed. Because many a times grasping the concepts in these books will entail multiple readings.
Hope this list gets pinned somewhere so that it doesnt need repetition. 