Rhythm Reading Bootcamp, Volume 2
Volume 2 picks up where the first book ends and moves into sixteenth notes — which is where most of the bass parts you actually want to play live.
Syncopation, ghost notes, displaced accents and the handful of rhythmic cells that recur across funk, soul and pop. By the end you should be able to look at a bar of sixteenths on one of the charts here and hear it before you play it.