C.F.
In this reference bookReference book:
A reference book is a specialised publication that provides knowledge and information on a specific topic, readers are guided step-by-step through the processes of identifying and fixing common problems, from simple adjustments to complex repairs. Whether it's adjusting neck curvature, changing frets or repairing cracks, this book covers it all with detailed instructions and high-quality illustrations. In addition to the technical aspects, the edition also offers tips on how to care for and protect your guitar to ensure it lasts for generations. With this comprehensive reference work, you will delve deep into the subject matter and learn how to keep your instrument in optimum condition.
Centerstream Publications C.F. Martin Guitars: A Repair Guide