A psychological guide to mastering the market with confidence and discipline. - Title: Trading in the Zone - Author: Mark Douglas - Content: A guide to mastering the market with confidence, discipline, and a winning attitude. Although these are new products, some may have creases or stains from the time of purchase. If you are looking for a perfect condition or are concerned about creases or stains, please refrain from purchasing. We do not accept returns or refunds. Thank you for your understanding. Thank you for your consideration.