This is a solid primer in data mining! The author knows the material well, and writes clearly.
The book includes a generous dose of introductory material, something many other titles omit, but which most readers need. And it's written so that it can be understood by newcomers to the topic.
This book is best for those who have some significant technical grounding, such as training in statistics, programming, or databases. If you're an IT professional, programmer or experienced data analyst who wants to get a grasp of data mining, reading this book would be an excellent way to begin.
If you are a business person who wants a beginner's book to understand data mining concepts and perhaps try it yourself, but you're not yet a hands-on data analyst, this book may not be what you have in mind. You might prefer to choose another book to start, or to read just portions of this one to suit your own comfort zones.