This is maybe the second scale people learn on the guitar – the first being the minor pentatonic. You gotta know them both however! Now, there is a trick you should know here as well. E major pentatonic has the same notes as C# minor pentatonic. This is because C# minor is the relative minor chord to E Major. The distance 1.5 whole-steps (3 frets). That works the other direction too. If you play E minor pentatonic, you are playing the same notes as G major pentatonic.