I did this and that today, and in between read a few pages of “The Catalogue of Shipwrecked Books,” by Edward Wilson-Lee (2018). It’s about the library that the second son of Christopher Columbus amassed, larded with detailed stories about the father, of course. I kept having to check on Wikipedia pages to get more context than Wilson-Lee offered. I was especially curious about the geography of central-northern Spain, which wasn’t Spain then. And map pages do load slowly here in the hinterlands.