A COMMON SENSE APPROACH TO IMPROVISATION FOR GUITAR by Joe Negri, compiled & edited by Tim Bedner, is a nice way to learn the subject. The table of contents gives the guitar player such helpful information as "Playing Major Triads and their Inversions," "Arpeggio Picking for the Right Hand," "The Plagal Cadence," "The Authentic Cadence," "Phrasing and Articulation with Sweep Picking," "The Upper Neighbor Tone," among other topics.
There are also 32 figures to accompany the text. This would be an ideal gift for a beginning guitarist and would be enjoyable for the advanced guitarist as well. Easy, step-by-step instructions make this an entertaining introduction to its subject matter.This is a common sense approach to improvisation for the guitar. It is a book that would be useful for all guitarists.