With 'Get A Grip' you can pay attention to an important part of the left hand technique: playing chords where the fingers have to press the strings longer than the note value. Using chord diagrams above the bar, you can see whichstring (or strings) you have to keep pressing at that particuar moment. The dotted lines next to the diagrams show exactly how long you have to keep your fingers on the strings.

19 pieces for guitar - book 2.