The Handbook of Integration

Excellent book but is basically a review of what I should know (but forgot or neglected). Didn't cover the category of integration I am interested in though. If you don't have a books dedicated to elementary integration get this; and the price was reasonable.

great little book on tricks for integrating complex integrands. This is a great description of the method of integration by such great books such as Gradshteyn and Rhyzik.