Book excerpt: Introduced in 1961, the Gibson SG is Gibson’s biggest-selling guitar of all time, and is synonymous with Angus Young (AC/DC lead guitarist), Tony Iommi (Black Sabbath) and Robby Krieger (The Doors). The SG was originally produced as a more easily manufactured ‘mass-production’ version of the Les Paul, sales of which were diminishing at the time, but the solid-bodied SG (‘Solid Guitar’) soon became a revered instrument in its own right. Superbly illustrated and designed, this manual includes case studies of key models – everything from a vintage SG ‘Les Paul’ to a 2011 SG 50th Anniversary model – but also gives appropriate attention to today’s affordable Epiphone versions, Specials, Juniors and Melody Makers.