Recommended Reading

Most of the readings below are related to investment, but some are not. Either way, I've found all of them to be quite interesting so I thought I'd share them. They're in no particular order.

Warren Buffett's Partnership Letters (I've found them from 1957 to 1970 on the web).
Warren Buffett's Annual Letters to Berkshire Hathaway Shareholders (1970 to 2012).
Other articles written by Buffett, including:
"How Inflation Swindles the Equity Investor" (1977)
"You Pay A Very High Price In The Stock Market For A Cheery Consensus" (1979)
"The Superinvestors of Graham-and-Doddsville" (1984)
"Mr. Buffett on the Stock Market" (1999) and the follow up article in 2001 
His 2003 article for Fortune on America's trade deficit
"Buy American. I Am" (2008)
"The Greenback Effect" (2009)

Charlie Munger's "Poor Charlie's Almanack: The Wit and Wisdom of Charles T. Munger, Expanded Third Edition" (2005)

Benjamin Graham's "The Intelligent Investor" (fourth revised edition, 1973)

Peter Lynch's "One Up On Wall Street" (2000 edition)

Philip Fisher's "Common Stocks and Uncommon Profits and Other Writings" (1996) which includes "Uncommon Stocks and Uncommon Profits", "Conservative Investors Sleep Well" and "Developing an Investment Strategy"

Joel Greenblatt's "You Can Be A Stock Market Genius" (1999) and "The Little Book That Beats the Market" (2006)

Seth Klarman's "Margin of Safety" (1991)

Howard Marks' "The Most Important Thing" (2011)

Alice Schroeder's "The Snowball: Warren Buffett and the Business of Life" (2008)

Janet Lowe's "Damn Right: Behind the Scenes with Berkshire Hathaway Billionaire Charlie Munger" (2000)

Tweedy Browne's paper "What Has Worked In Investing" (2009)

Nassim Nicholas Taleb's "Fooled by Randomness" (second edition, 2005), "The Black Swan" (second edition, 2010) and "Antifragile" (2012)

Daniel Kahneman's "Thinking, Fast and Slow" (2011)

Tobias Carlisle's "Deep Value: Why Activist Investors and Other Contrarians Battle for Control of Losing Corporations" (2014)

Wesley Gray and Tobias Carlisle's "Quantitative Value: A Practitioner's Guide to Automating Intelligent Investment and Eliminating Behavioral Errors" (2012)

Atul Gawande's "The Checklist Manifesto: How to Get Things Right" (2011)

William Poundstone's "Fortune's Formula: The Untold Story of the Scientific Betting System That Beat the Casinos and Wall Street" (2006)

Robert Cialdini's "Influence: The Psychology of Persuasion" (2006)

Dale Carnegie's "How to Win Friends and Influence People" (1981)

Bruce Greenwald and Judd Khan's "Competition Demystified: A Radically Simplified Approach to Business Strategy" (2007)

If you're completely new to investing and are looking for somewhere to start, I'd suggest Greenblatt's "The Little Book That Beats the Market" as a quick, simple and entertaining explanation of the main principles of the stock market and investing.