Vegeterian Cooking for Everyone by Deborah Madison

Another cookbook from early in my marriage, my copy is nearly unusable by now. The thing I love most about this book is that it includes nearly every fruit, vegetable, or plant I've ever heard of eating - and it tells you how to prepare them deliciously, giving not just recipes but basic principles of what to look for and how to fix. Quite possibly my favorites are the white bean soup; the bean and pasta dishes; and the golden caramelized tofu with peppers.