Short selling is one of today's most versatile and potentially profitable investing techniques - and also one of the most misunderstood. What is Short Selling? demystifies this often overlooked process, detailing everything from what short selling is and how it works to short selling strategies you can use to increase your portfolio's performance as you shield it from disastrous market downturns.For decades, portfolio managers and sophisticated investors have used short selling to enhance their trading. Now it's your turn. What is Short Selling? reveals how traders or investors can benefit from this technique and provides you with the knowledge your need to use short selling to improve your portfolio's returns as you control your investment risk.Tom Taulli is founder of the online investment company WebIPO. Read Less