Being able to instantly identify, and move to different notes along the fretboard is a must know skill for anyone serious about learning to play the guitar. Knowing your way around the neck of the guitar is important for playing chords and chord progressions, for improvising, and an absolute must if you want to start writing your own songs as well.
Learning the notes on the fretboard is not really hard, it just takes some studying. Thankfully, the guitar is built in such a way, that allows us to easily identify the notes on 4 of the 6 strings, after learning the notes on the low E and A strings. This is due to the relationship between the notes on the strings. If you haven't done so yet, watch our video guitar lesson on learning guitar notes, I explain the following on video, which makes it even easier to digest.