Living Vegan for Dummies isn’t bad as intro to veganism, just remember that sometimes people are a bit anal(the authors say you’re not vegan if you consume non vegan medication or get your children vaccinated.) The Vegan Girl’s Guide to Life is pretty awesome. The Kind Diet is another one if you’re looking into an intro type thing.
As far as cookbooks go, I LOVE Vegan with a Vengeance and Student’s Go Vegan Cookbook. Never had a bad recipe out of those two.