Does the boss enjoy grilling or other kind of cooking? My dad uses this wonderful cookbook all the time and I have gotten it as a thank you gift for professors before. It seems to be out of print but there should be some untouched copies available through secondary sellers http://www.amazon.com/Complete-Meat-Cookbook-Bruce-Aidells/dp/061813512X#
https://www.amazon.com/Complete-Meat-Cookbook-Bruce-Aidells/dp/061813512X
The description is a little far-fetched (or at least inaccurate). Being that it's almost 20 years old, it doesn't go into organic and grass-fed much, if at all. So don't buy it for that.
EDIT: You can see the table of Contents at the Amazon link. That may be a little deceptive, too. It's probably 3/4's recipes and 1/4th advice/information. But the recipes are matched with the subject/cuts being discussed and give you a a good idea of how to cook (and how not to) most cuts. Wich is most of what you need to know. You don't have to follow recipes (I never do), but pay attention to the techniques rather than the ingredients in the recipes.
The Complete Meat Cookbook by Bruce Aidells. It looks like he has a newer one out but I haven't read it.
I like it because it teaches you how to buy meat. If you want to make a pot roast, for example, it gives you the common cuts of beef for that and the pros and cons of each one, then gives you the recipe and variations.
Since meat is good for you, I consider it a healthy cook book.
Cook books are also a great idea (for just about anyone). Since there's so many, you can find something that suits them just right. I've been considering getting The Complete Meat Cookbook for my partner.
Edit: typo