English (sharp enough for violin) and all dimensions Inches! A host of good information (wood, mecha, microphones ..) techniques and practices from A to Z, with many + CAD drawings, and photos. Very documenté- the author is connu- pub hair for some equipment suppliers US! The DVD setting part is short but OK. The tools are intended to + Pros. My concern is that we find too much "blah person + Artists" ie 30% around the bottom of the text, we have rehearsals, no No. figure / picture (!), It is written too big IMO, not concise in Chapters repair & Information basics, and it looks like it comes from a dictaphone! We lose a lot of time compiling his information yourself ... it's pretty frustrating, therefore, obliged to make himself his own references if you want to navigate you later .. your pens and wingtips!
Fortunately, the table of contents is accurate enough!