Elvis is my religion. But for him, I'd be selling encyclopedias right now.
People ask me all the time what or who my influences are. To be honest, it would take a decent set of encyclopedias to get them all down. I am here today to let the world know my greatest influence, my secret ingredient, really. What inspires me? That's simple: COFFEE.
[My wife] liked to collect old encyclopedias from second-hand bookstores, and at one point we had eight of them. When I wrote my first historical novel---back in 1980, before I was online---I used them often as a research tool. For instance, I learned that the Bastille was either 90 feet high or 100 feet or 120 feet. This led me to formulate Wilson's 22nd Law: 'Certitude belongs exclusively to those who only look in one encyclopedia. '
I'm always reading many books at a time. It might be quite unorthodox, but what I do is, since I'm always surrounded with books, I'll read a page of physics, and then I'll read a chapter of a novel that I really love, and then I'll say, "Oh well, what does that mixture do in my head?" I adore reference books. I love encyclopedias. I also like just going back to original texts, because a lot of these self-help books today.