While walking through SF Chinatown, I stumbled upon Sino-American Books & Arts on Jackson St. In the front, they have an selection of bilingual Chinese and English cookbooks, each marked on the side with a sticker. It's not an enormous selection, but worth checking out if you're in the neighborhood. A few Pei Mei books and others. No Wei-Chuan books.
For $25, there's also a Chinese only Sichuan cookbook from a few decades back. It's one volume of a several volume regional Chinese culinary set. For the pictures alone, I thought about buying it.
The owner, a Taiwanese woman named Mama Jiang (sp?), was very friendly and gave me lots of cooking tips, and even a bite of her lunch!
Sino-American Books & Arts
751 Jackson St San Francisco, CA 94133