This book was originally designed as a guide for teachers of high school agricultural education programs. It contained supplemental materials and study pages, and was one of the first organized commodity marketing courses for high school students. The original course was funded by Chicago Mercantile Exchange (CME) in conjunction with the National FFA Foundation and the Stewart-Peterson Advisory Group. Several individuals contributed to the project, including high school instructors to whom CME is grateful. The success of the course in the schools has prompted CME to redesign the book as a textbook, revise and update it once again, and make it available to anyone who wishes to gain a comprehensive introduction to commodity marketing.