For all those (not forget the girls) that make the violin or amateur who want to customize their beloved instrument is a great book. I have one thing to say => All my Congratulations Kamel Chenaouy this book is a great job with very good information and good condensed that you can find info like right left . I am happy to have acquired trs this book to guide my choices of wiring Manir warned. I can truly say thank you Kamel, alex and the rest of the team for all the work they do and the passion they put. (And the book on building guitars and the same ilk.)