As the long-time best-seller, Garrison has helped guide close to 3 million students through managerial accounting since it was first published. It identifies the three functions managers must perform within their organizations�plan operations, control activities, and make decisions�and explains what accounting information is necessary for these functions, how to collect it, and how to interpret it. Garrison�s Managerial Accounting, is known for its accuracy and rigor. It is also unique in that the authors write the most important supplements that accompany the book: solutions manual, test bank, instructor�s manual, and study guide.