I read this aloud to my wife and we were both fascinated. I read to myself The Ends of the World by Brannen a few years ago on all the mass extinctions but it was interesting to read the details about the K-Pg one, with chapters on the impact, the first day, first month, first year and other periods of lapsed time. It's written in a journalistic style - approximate since the author is a journalist - which makes it an easy read, but she has a chapter at the end explaining some of scientific findings on which she based and the sources of her more speculative reconstructions.