We are excited to offer books and ProSeries blueprints by Roger H. Siminoff, one of the foremost authorities on musical acoustics and the art of luthierie. Holder of seven patents on musical instrument design, Roger has been designing, building, researching, playing, and writing about instruments and their makers for more than 50 years. He has authored eleven books on musical instrument construction and more than 500 articles and columns about artists, manufacturers, and a wide range of topics on the art of luthierie.