It tells the story, in his own words, of how Peter Lynch picked stocks and shares for one of the largest and most successful US mutual funds of the 80s. He spends the first half of the book talking a about his years growing and managing the Magellan Fund.
However, it is the second part which is most interesting where he runs through a lot of examples of how and why he picked and invested companies. It really helps new investors to understand there are opportunities everywhere, you don’t have to a fund manager to be a successful stock picker, but you do need to research and understand a company financials position.
This book doesn’t have some instant formula for success, because there isn’t one, but it does offer a lots of sound principles that should form the backbone of any investment strategy.