“Trading in the Zone” by Mark Douglas is a comprehensive textbook on social work, focusing on the areas of trade, education, and general topics. Published in 2020 by XYZ, this hardcover book is designed for adult education and further education levels, with a variety of levels from beginner to advanced. The book features illustrations and is written in English, making it accessible for a wide range of readers. With 200+ pages and measuring 21cm in length, 16cm in width, and 2cm in height, this textbook is a valuable resource for those in the field of social work.