I bought "101 Must-Know Blues Licks" based on strenth of couple
other books of Wolf Marshal that I own: "Best of Jazz Guitar" and "Guitar Jamming - Classic Blues". I have seen "licks collection" type of guitar books before but this book is by far the best.
Licks included are real life - easily recognizable lines that you can attribute to guitarist mentioned in text. Both standard notation and tablature are included. Licks are organized in collections of major blues styles: Pre-War Electric, Post-War Electric, Country and Early Chicago, Memphis, Texas, Modern Chicago and Texas, British, Postmodern.
Notation is VERY well annotated: leading tones, chords arpeggiated, question/answer, turnaround etc are all clearly marked. Smaller "licks within licks" are named. All that greatly enhances ease to learn and reusability of those lines.
Each lick is recorded twice on CD - normal and slowdown speed (usually slow enough to pick the notes easily by ear). Each section of licks is recorded using guitar tone (both axe and amp) reflecting typical guitar tone of the style and the guitar and amp used are described in detail in text.
I HIGHLY recommend this compendium to any intermediate guitarist in need of solid blues vocabulary.