There are not too many books dedicated to GDI+ and Graphics Programming in .NET but this book is definitely one of the finest technical books written on GDI+. As such I am a big fan of AW's .NET Series managed by Don Box and group because of the quality of contents and experts involved in the series.
This book delivers what is promises. Author's writing style is pretty straight forward, which I liked the most. Author talks to the point. As a beginner, you will get it right away.
There are some chpaters such as performance and best practices, Advanced Imaging, Advanced 2D, Transformation and Printing where advanced users will definitely learn what is not discussed in MSDN documentation or in any other books.
All explainations are followed by a sample code, which is pretty nice to have. Just read and run the code. All samples in the book are a seperate project so that's kinda cool.
If you are involve with writing drawing, printing, painting, and UI applications for Windows Forms or Web, you may want to try this one.