Justin Sandercoe, better known as simply JustinGuitar, is one of the most trusted and successful online guitar instructors in the history of the internet. After starting as an instructor at the Guitar Institute in London, hequickly realized the potential of online video lessons and began posting video lessons in 2001. His video lessons have clocked up over 400 million views and his YouTube channel has nearly a million subscribers. He's been calledone of the most influential guitar teachers in hi...