The book is targeted at administrators who have been employed to either maintain an existing NetSuite database or to liaise with external NetSuite consultants who are implementing the system at their employer (and then use that experience to administer NetSuite after it has been deployed). They know databases and coding but may have limited knowledge of ERP and business process.
The reader has likely some limited experience with NetSuite, has accessed it, and reviewed some of the help documentation. Administrators, however, tend to find the interface overwhelming with an unfriendly menu system and complex help knowledge base. They describe seeing all the options NetSuite offers as drinking through the proverbial fire hose and want help to make sense of all this information.
There may also be several experienced administrators reading this book. They may have been NetSuite customers for many years and want to learn about the new features that NetSuite has introduced since they were first implemented.
Administrators want to learn the tasks they need to perform on a daily basis (troubleshooting errors and setting up users) as well as monthly (such as imports and duplicate detection and merge). They also want to become expert enough to be seen as the NetSuite leader internally, being able to advise department heads on specific processes as well as on strategic decisions (such as whether to use NetSuite webstore or shopify.) They want to learn these skills quickly without having to spend weeks of time and thousands of dollars taking NetSuite corporate training.