Personally, I've been playing several instruments and am well acquainted with the music theory. I bought a violin to still have a different challenge. Through the book I have things like the hand position, bow pose can learn so. Also for the first two to three days the songs were fine. However, I had been through and played would have liked more serious pieces. Unfortunately no continuing Putting book is given.
So for absolute beginners, the book is suitable, and one should not fiddle as Erstinstrument, for self-Teach you buy as a beginner anyway!