Until a couple years ago I always read only one book at a time. But then I started participating in some reading challenges and online book groups and began reading more at once. Now I generally have going at once: an audiobook I listen to when I go for walks, a book I read a couple chapters of each day over the month for a book group, and a book I’m reading for a challenge. I do try to keep each book in a different genre though. I don’t like reading two different fantasy or SciFi books at the same time.