I have purchased a number of Irish fiddle materials over the last four years. I have played guitar for over 30 years and thought that I would try Irish fiddle. Of all the books and materials I have purchased, this is simply the best. The tunes are challenging, yet playable, (if you put some time in} even for a beginner. Mr. Cranitch's playing on the accompanying cassette is excellent, and the cassette makes for good listening on it's own. I would assume that an intermediate to accomplished violinist who wants to play Irish fiddle would find this book less challenging, but I am confident that he or she would enjoy it. For someone with no knowledge of the violin, it will be very challenging, and maybe discouraging. But, once you have the ability to play in tune in first position, and are comfortable and relaxed with your bowing, this is the book to buy.