Among fretted-instrument players there is an expression that states, "The fret hand marks a player, but the pick hand distinguishes an artist." The 23 original compositions in this book offer a fresh basis to explore and develop plectrum or pick-style playing technique to a professional level. These pieces require various playing techniques and include: linear studies, double-stops, counterpoint, and chord playing. By studying and learning these pieces, guitarists can not only refine their technical mastery, but also enhance their skill level and artistry in solo guitar performance. This collection also includes eight duet arrangements to be played by two guitarists. The duets are fun to play as student/teacher sight-reading exercises, and can be used as guitar duo performance repertoire as well. The music is written in standard notation only. Access to online audio is included for all 31 pieces.