These are some of my favorite WW cookbooks
Weight Watchers New Complete Cookbook by Weight Watchers (has both Flex and Core info)
*** I just got this a few weeks ago and its great!
Weight Watchers Ultimate Flex & Core Cookbook by Weight Watchers
**** another good one!
Slow Good (Super Slow-Cooker Cookbook) by Weight Watchers International Inc (Paperback -2005)
***Great for winter comfort food!
Weight Watchers Stir It Up! Super Skillet Cookbook by Weight Watchers
Weight Watchers: Annual Recipes for Success 2006 by Successes writer: Jan Walsh, Alyson Moreland Haynes, and Jim Bathie
Weightwatchers Take 5 , 150 Five-ingredient Recipes by Weight Watchers, Carol Prager, and Bob Eckstein
*** I use this one a lot!
I also like the Cooking Light cookbooks and magazine as they show the nutritional info so you can count your points.