Don't get us wrong; we applaud anyone who knows how to play a mean guitar. But we must say, we're even more impressed by someone who knows how to build one. Chances are good that if they do, they learned it at the Roberto-Venn School of Luthiery. Since 1975, Roberto Venn has been attracting students of all makes and models: high school graduates, aspiring musicians, retired guitar enthusiasts, and even those who already know a thing or two about being a luthier. They come from all over the globe to commit to an intensive 10-hour-a-day, five-day-a-week, five-month semester of certified higher learning in the art of luthiery.Graduates of the Roberto-Venn School go on to develop their own guitar brands or are scoped out by big-name companies like Fender and Gibson. Classes are capped at 40 students and often require waitlists in both the spring and the fall sessions. So if you're ready to quit that desk job and pursue your musical dream, you'd better sign up fast. See a slideshow here.