Rather than inflict that on you, I'll just note that you should visit the bookstore of your choice RIGHT NOW and get his latest, "Star-Begotten: A Life Lived in Science Fiction," a memoir described as "Gunn's reflections on a career that spans from science fiction's Golden Age to the present."
I'll even make it easier for you. Here are links to the book. Now you have no reason not to buy it right now. You can thank me later.