Every guitarist had his sources that made him learn how to play, teacher,friends,books,internet,etc.
On the other hand, if you learn the basic stuff from someone or something , you can still go further by yourself without any help, this can also be called "Self-Taught"... and that's what realy happens when somebody claims that he's self-taught, he means that he figured out a lot of technics & stuff by himself, not that he figured out the EADgbe tuning,chords & scales wihtout any external help.
