Here are a few awesome books that I have found about the history of acoustic guitars and a few acoustic guitar companies.
Hand Made, Hand Played:
The Art & Craft of Contemporary Guitars

Feast your eyes on more than 300 of today's most creative, imaginative, and gorgeous hand-made guitars—all illustrated in full color and featuring information about the innovative artisans who created them.
Meet guitar-making legends, such as C.F. Martin, Les Paul, and Leo Fender, who revolutionized the instrument's design. Discover why the past 25 years have seen an explosion of craftspeople who build guitars by hand, employing an attention to detail factories can't afford and using higher quality materials and more technical skill than in any previous era. Explore the various guitar styles used in a range of musical traditions, from blues to classical. Detailed information about each guitar's specifications, plus personal statements and anecdotes from the artisans about their work and techniques complete each entry. Rounding out the book is a Web directory and an index of luthiers.
Players, craftspeople, collectors, and those who are simply fans of this popular instrument will find this volume irresistible!
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The Classical Guitar: A Complete History

Offering essays by the world's top experts in a full-color, coffee-table quality book, this is the first work to tell the complete story of the classical guitar and its repertoire, players and makers - from its 19th century European roots to modern international interpretations. This handsome softcover volume features lavish photography of classical guitars made by the best luthiers in the world. Additional essays cover use of the classical guitar in pop muisc, different playing and teaching techniques, the collectors' market, and the science of the guitar. It also features profiles of legendary artists such as Andr's Segovia, Julian Bream and John Williams, plus a full discography, a glossary, an index, a bibliography, and a guitar measurement chart.
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