Looking for guitar amplifier values and information? The Blue Book of Guitar Amplifiers, 3rd Edition is now expanded to 608 pages including the 16-page color Photo Grading System. The book offers guitar reference information and values on more than 400 guitar amplifier manufacturers and distributors including Fender, Marshall, Ampeg, Vox, Peavey, Mesa/Boogie, Laney, Kustom, Harmony, Kay, Epiphone, and Orange, as well as many boutique amplifier builders. Other features include several hundred intricate images, a detailed guitar amplifier dating section, and a Trademark Index that lists all current contact information for manufacturers. This unique and valuable compilation of information is not available anywhere else at any price!