. >> host: you mentioned in favorite books, bill bryson. >> guest: bill bryson -- the ability to seamlessly blend really fascinating information with humor, no one does it better. on my best days, reaching as far as i can, i can maybe graze the him of his clean knows, whatever he is wearing. he is just a tremendous writer. never a steal turn of phrase. here's an example. bill bryceson was describing -- he is grown up here in and also lived in the uk, and he described summer in the uk. of course it's covered by this gray clouds, and almost the entire summer, this gray color, and instead of saying, it's gray overhead the entire time, he say, it was like living inside tupperware. so, anyway, he just has this marvelous ability to blend research and fact with fun and humor. >> host: you're watching booktv on c-span 2, our guest is author mary roach, the awe for thereof fine nonfiction books beginning with "stiff," 2003. "spook," 2005, science tackles the afterlife. "bonk" the curious coupling of science and sex, packing for mars, the curious science of life in the void, 2010, and this year, "gul