They are totally complimentary. 7 Habits concentrates on "What to do" and GTD concentrates on "How to do it."

There are two other excellent "self-help" books that should be part of everyone's bookshelf. They are:

* "Getting to Yes" which I think is the greatest book on negotiation. "How to deal" * "Sources of Power" by Gary Kline talks about how people make decisions. "How to decide"

Give me these four books, and a firm place to stand, and I will move the world.