Making Money in the Stock Market: Peter Lynch on Investing in the U.S. Economy (1994)

Lynch was hired as an intern with Fidelity Investments in 1966 partly because he had been caddying for Fidelity's president (among others) at Brae Burn Country Club in Newton, Massachusetts. He initially covered the paper, chemical, and publishing industries, and when he returned after a two-year Army stint he was hired permanently in 1969. This time Lynch was charged with following the textiles, metals, mining, and chemicals industries, eventually becoming Fidelity's director of research from 1974 to 1977. In 1977, Lynch was named head of the then obscure Magellan Fund which had $18 million in assets. By the time Lynch resigned as a fund manager in 1990, the fund had grown to more than $14 billion in assets with more than 1,000 individual stock positions. From 1977 until 1990, the Magellan fund averaged a 29.2% return and as of 2003 had the best 20-year return of any mutual fund ever. Lynch's achieved dollar successes in a range of stocks including (by order of profit achieved - source is Beating the Street): Fannie Mae, Ford, Philip Morris, MCI, Volvo, General Electric, General Public Utilities, Student Loan Marketing, Kemper, and Lowe's. Lynch was described as "legendary" by Jason Zweig in his 2003 update of The Intelligent Investor.

Lynch has written (with co-author John Rothchild) three texts on investing, including One Up on Wall Street (ISBN 0671661035), Beating the Street (ISBN 0671759159), and Learn to Earn. The last-named book was written for beginning investors of all ages, mainly teenagers. In essence, One Up served as theory while Beating the Street is application. One Up lays out Lynch's investment technique including chapters devoted to stock classifications, the two-minute drill, famous numbers, and designing a portfolio. Most of Beating the Street consists of an extensive stock by stock discussion of Lynch's 1992 Barron's Magazine selections, essentially providing an illustration of the concepts previously discussed. As such, both books represent study material for investors of any knowledge level or ability.

Lynch also wrote a series of investment articles for Worth magazine that expand on many of the concepts and companies mentioned in the books.

Lynch coined some of the best known mantras of modern individual investing strategies.

His most famous investment principle is simply, "Invest in what you know," popularizing the economic concept of "local knowledge". This simple principle resonates well with average non-professional investors who don't have time to learn complicated quantitative stock measures or read lengthy financial reports. Since most people tend to become expert in certain fields, applying this basic "invest in what you know" principle helps individual investors find good undervalued stocks.
Lynch uses this principle as a starting point for investors. He has also often said that the individual investor is more capable of making money from stocks than a fund manager, because they are able to spot good investments in their day-to-day lives before Wall Street. Throughout his two classic investment primers, he has outlined many of the investments he found when not in his office - he found them when he was out with his family, driving around or making a purchase at the mall. Lynch believes the individual investor is able to do this, too.

He also coined the phrase "ten bagger" in a financial context. This refers to an investment which is worth ten times its original purchase price and comes from baseball where "bags" or "bases" that a runner reaches are the measure of the success of a play. A "two bagger" would be a double, so by extension, two home runs and a double would be a "ten bagger".

http://en.wikipedia.org/wiki/Peter_Lynch