"The Disciplined Trader: Developing Winning Attitudes" by Mark Douglas is a hardcover book aimed at a trade audience of adults aged 18 and above. Originally published in 1990 by Penguin Publishing Group, this book explores the disciplines and attitudes needed to become a successful trader in the world of finance and investments. With a focus on general finance, stocks, and psychology, this book offers insights and strategies for those looking to enhance their trading skills and overcome common psychological barriers. The author, Mark Douglas, provides practical advice and guidance to help readers develop the discipline and mindset required to thrive in the world of trading."