....Contemporary Paddling Technique.
By Lou Glaros and Charlie Wilson.

Picked this up last year when I bought my yellowstone. Claims to be "based on the quiet, ripple-less paddling techniques of Native Americans".

In 138 pages this book covers canoeing basics (physics, hull shape etc, paddles, clothing etc), paddle strokes, and combined strokes for freestyle maneuvers for both solo and tandem canoes.

By far the best book I have to date dealing with physics and how to use a paddle.