This post is just to let you know of a couple of reviews worthwhile to be read. These appeared in the latest number of Review of Modern Physics:
Dieter Drechsel and Thomas Walcher, Hadron structure at low , preprint and published
Estia Eichten, Stephen Godfrey, Hanna Mahlke, and Jonathan L. Rosner, Quarkonia and their transitions, preprint and published
This number of RMP contains other interesting reviews. You can find a table of content here.