Here's one for the historical fiction and/or history non-fiction readers:
Is there any particular historical period you find yourself most returning to? Intentionally or not?
I've just started All His Spies by Stephen Alford, which is a biography of the Elizabethan spymaster Robert Cecil, and it's got me thinking about how many books set in/about the Tudor period I've read, without ever considering myself to have a special interest in the period
Ancient Rome and the Roman Empire is another (much longer!) period I often read about, but I think that stems from coming from the North East, where we have a lot of still present Roman history.