In The Successful Investor, O'Neil comes forward to guide investors how to make money and, more importantly, avoid losses in up markets, down markets, and everything in between. Demonstrating how the errors that caused the recent market collapse were amazingly similar to those of previous down cycles, O'Neil presents simple steps investors can follow to avoid costly mistakes. In his latest book, O'Neil explains how anyone can become a profitable long-term investor, regardless of market tides or turns.