I enjoy this book enormously and find it very helpful. There are 4 sections: Silk shading, crewel work, blackwork and goldwork, each with about 5 projects you can work. There is also an interesting introduction to each style with information about the history of the technique and comprehensive stitch instructions are given at the back of the book. There is also a little background information about the RSN itself and a general guide to equipment and design transfer.
I've given it 4 rather than 5 stars as not many of the projects appeal to my more traditional tastes, but there is a good cross section of both modern/abstract and traditional designs. Also, I think that goldwork would cost a small fortune! Some of the designs use an enormous variety of threads, so be prepared to either expand your stash considerably, or adapt freely.
Also, the book is not *really* suitable for beginners though as, although there are 'Beginners Exercises', they are still rather large projects and don't produce anything you can do something with. For instance, a small, simple flower that could be put into a small frame or card would have been a better beginners exercise in silk shading than the usual 'tile' design.
On the whole though, well worth adding to your collection and good value for money.