Cliff Jacobson's "Expediditon Canoeing" is excellent. Abother book in the same vein is Bill Mason's "Song of the Paddle" (the book, not the movie). Other things to think about.
There are also some great handy tips in "The Canoeists Sketchbook", by Robert Kimber, which in my opinion is a must-have book for any wilderness canoeist.
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