Rodney writes, “Early in 2019, I was approached, out of the blue, by a retired Boeing Company aeronautical engineer living in Seattle. He is a fan of my 2002 best-selling earthquake preparedness guide and wondered whether we might collaborate on an updated, expanded version covering the entire northwest coast of the United States, as well as southwestern British Columbia. We have been working intensively together on that project for the past three years (see Corinthian Bookshelf).”