C.F Martin & Co – also known as Martin Guitars - have been creating the finest instruments in the world since 1833. They are highly regarded for manufacturing steel-string acoustic guitars and flat top guitars. They also previously made mandolins, ukuleles, electric guitars and basses. You can buy acoustic guitar strings online, but have you bought Martin before? They are among the best - the Martin SP® LIFESPAN™ line uses an industry leading core wire to hold tunings better. If you look for a semi acoustic guitar online, an acoustic guitar online, or a beginner’s guitar online, Martin offers high quality instruments.