This book covers just about everything you could need when researching Robin Hood. It gives a good general overview of most of the common legends and tales surrounding the Lincoln Green clad outlaw and his band of Merry Men. It also looks at the evolution of the legend, from it's earliest beginnings right through to the latest incarnations as seen in film and on TV.
The book is well written and easily consumed. To be honest there is not a lot more to say about it! If you are interested in learning a little more about Robin Hood, whether it be the original legends, the locations they took place in, or the recent TV appearances this book is a great place to start.