The Pink Adobe Cookbook, by Roselea Murphy, has long been a favorite. Best BBQ sauce you will ever have-my children used to get up in the middle of the night and eat the left overs with bread. Potato salad with feta and green chiles is also a winner. This is a book I have replaced when the old one fell apart.
Wings of Life by Julie Jordan Julie had a vegetarian restaurant in Ithaca NY and one of the main menu items was a soup/salad/bread combo. You chose from the soups and breads of the day. I bought Wings of LIfe so I could duplicate her black bean soup. Every recipe I have tried is a keeper. Another one I would replace if I lost.
Lastly, Soups for All Seasons by Brad McCrorie If you like to make soup, track this down. You will likely pass up some recipes (I myself will never get around to pheasant and chanterelle soup), but many more are very very good. Cream of zucchini and eggplant, check, Caribbean pepper pot, oh yes!
I don't think any of these are in print, which is a shame.
Zephy