Cookbook Gift Recommendations Needed

I'd like to buy a cookbook gift for each of two friends who cook. One tends to cook for large family gatherings with a basic, no frills, no fussiness style. She tends to look at a recipe and then tinker with it rather than follow it to the letter. The other friend generally cooks for her family of two. She likes to explore and isn't afraid to seek out and use unusual ingredients, but she's not big on baking. She tends to follow a recipe to the letter. Neither would be interested in anything that requires protracted cooking techniques. Do you have some good recommendations for me to buy for them?