I've had a startling number of conversations exactly like this:

"Oh, you read as well? What do your read?"

"[this book], [that book]"

"Those are all non-fiction, any fiction?"

"I don't read fiction. If I'm not going to learn anything, it's a waste of time."

"..."

Oh man, have I gotten to read a lot of history recently.

And also fiction.

Frequently at the same time.