(In the first chapter, after completing the introduction of this book, the second chapter will first introduce the ITSM manager examination we face together, so as to know the other. Then, from Chapter 4 to Chapter 7, this book will be divided into four parts, based on the gene learning method, and directly list the contents that readers want to remember. These four divisions are: general content, servicesupport, servicedelivery, and process diagram. In Chapter 8, we will use the simulated examination questions collected through various channels in this book to comprehensively practice the effect of gene learning method. Chapter 9 will take you to carefully clean the battlefield in the future. Based on the two cases adopted by Exin, this chapter will list all the key points that may be solved from servicesupport or servicedelivery. Chapter 9 provides a military map with specific notes. In fact, after the training in Chapter 9 and a lot of reading, you don't need to spend time looking up any case content during the exam. In Chapter 10, some details about the exam will be shared with you one by one.)