I very much was inspired by Bill Bryson. He does cover science, but more often, it's a mixture of science and travel, and whatever he happens to be writing about - Shakespeare, Australia, the United Kingdom, or when he covers science in 'A Short History Of Nearly Everything' - he has an incredible ability to be both entertaining and enlightening.
I don't write on topics that require a lot of urgency. But in 'Stiff,' I wanted to change people's hearts about organ donation. Whenever I get a chance, I try to talk about that.
You won't see me writing about particle physics, or even planetary geology, or chemistry. I practically failed chemistry, and if I had to write a book in any of those areas, I don't think it would go well.
The writing is always the easy part, provided I can get the good material. It's the getting of the good material that's a challenge.