Yes it is! Much of it is biographical. As much as it is divided into specific areas of content, valuable information for the builder is spread throughout. There is a catalog of (most of) the existing Torres guitars at the back of the book. Each one has a listing of its major dimensions, many have photographs. There is another section with detailed building plans for FE19 and SE117. For an FE17 style build, follow closely what Torres did with FE19 as it was built close to the same time so reflects his practice and thinking of that time.