"The Disciplined Trader: Developing Winning Attitudes" by Mark Douglas is a paperback book published in 1990 by Penguin Publishing Group. This book, written in English, focuses on the psychology of trading and investing, with a strong emphasis on developing a disciplined and winning attitude. It covers topics such as finance, investments, and applied psychology, making it a valuable resource for individuals looking to improve their trading skills and mindset. With a compact size of 9.3 inches in length, 6.3 inches in width, and 0.9 inches in height, this book is a practical and informative read for those interested in the world of trading and investments."