This book provides a great survey of some recent advances in graph mining. When I started studying graph mining a few years back, there was no single book or reference to get a good introduction to the field. This book would have saved me some time in getting a firm grasp on the issues in graph mining.
The book provides the reader with a good introduction to the issues and different areas in graph mining. However, it does assume some familarity with graphs, and probably targeted at the level of postgraduate students. In addition, do not expect to obtain a thorough understanding of the field just from reading the book - its aim is to provide breadth, not to be a reference. Also, most of the contributions in the book is published work in conferences and journals, so can be obtained "free", if you organisation/institution you work at have access to the relevant publishers. Saying all that, I thorough recommend it if you are starting off in the field of graph mining, or just glad to be finally owning a graph mining book (like myself).