Reddit mentions of The Power of the Center: A Study of Composition in the Visual Arts, 20th Anniversary Edition

http://www.amazon.com/The-Power-Center-Composition-Visual/dp/0520261267

and http://www.amazon.com/Mastering-Composition-Techniques-Principles-Dramatically/dp/1581809247

While the latter is explicitly a painting instructional book IME that actually improves photography students' ability to see the forest and not just the trees.

http://www.amazon.com/Thinking-Type-2nd-revised-expanded/dp/1568989695/ref=sr_1_3?ie=UTF8&qid=1320103677&sr=8-3

http://www.amazon.com/Interaction-Color-Expanded-Josef-Albers/dp/0300115954/ref=sr_1_1?ie=UTF8&qid=1320104020&sr=8-1


http://www.amazon.com/Power-Center-Composition-Visual-Anniversary/dp/0520261267/ref=sr_1_1?ie=UTF8&qid=1320103713&sr=8-1 (this one can be a bit esoteric but if you stick with it, its good)

There are also roughly 6 elements to keep in mind when making compositions and you will have to read more about them and seek out examples. they vary depending on where you look but this has some: http://www.wiu.edu/art/courses/handouts/princdesign.html

This also has some good material: http://photoinf.com/General/Robert_Berdan/Composition_and_the_Elements_of_Visual_Design.htm

None of those links are perfect, and they are not quite the way I learned it either, but you should just do exercises to work on them. For example, In a 5x5 square, do compositions using just 10 dots of the same size. Make each composition represent a word such as unity, variety, movement, stillness, and others like that. Thats just a quick example.