Thanks, relacy for mentioning
The Jazz Bass Book. That is IMHO also a good book, and it does deal with a lot of bass lines, players, and various styles.
Another book that I would like to mention here is
Bass Notes. This is my walking bass line transcription book. It's different from the other books suggested in this regard: I transcribed my own lines from the play-along CD, and I comment on what I play and why.
The
Mike Downes book, or the
Jazz Bass Book both deal with historically important, famous players. The
Bass Notes book only presents my bass lines and analysis. (I ain't famous, but ya'll miss me when I'm gone

).
In
Bass Notes, I give some brief rules about bass line construction and interpretation—very Aebersold-like—and then I have the exact transcriptions of 10 standards with my style of walking bass lines, plus a lot of my little tricks laid out for all to see. You can listen to the CD and follow along, play with the CD, or turn off the bass channel—you know the drill.
I've been posting here on TB way too much lately about all of my stuff—videos and the like, so I don't want to come off here with too much crass commercialism. But, as long as we are talking about bass line books . . . mine is certainly another one.
I have to go back to the post by Mike Arnopol and remind anyone who wants to really learn to play bass lines to transcibe a lot. Playing a decent bass line is not rocket science, but it is a matter of hundreds (more like thousands) of hours of playing, listening, playing listening.