From the cutting edge of natural antidepressant research, here is new information on St. John's wort, SAMe, bright light therapy, and other proven natural remedies for depression. This fully updated second edition explores emotional health, including mood-enhancing fats and herbal antidepressants.
I guess I was looking for more of a "how-to" book, whereas this is more like a reference of methods for dealing with depression... Pretty much the first half of the book deals with "natural" cures (vitamin, mineral, herbal, etc.), and while I think changing diet is a perfectly good method, dosing on anything at highly concentrated levels doesn't strike me as especially "natural."
On a more positive note though, the second half of the book explores all kinds of methods from cognitive-behavioral therapy to bright light therapy, cold water therapy, exercise, meditation, and all kinds of other stuff, as well as research that offers potential mechanisms of how such methods might work.