Today I was participating in a discussion panel for instructors at my university and we got to talking about time management. I recommend to the audience that they should read David Allen's GTD book, and everyone perked up and started taking notes as I described what it was all about. It gave me the idea that I might give a workshop or write a book about "GTD for academics" or something like this.
My question is, if I were to give such a workshop or write such a book, would I have to clear this with David Allen's company or publisher? Or is "GTD" something that is more of a concept than a product?
I'd appreciate anyone's thoughts on this, especially if you have experience doing what I've described.