Churchill was a master of historical non-fiction. Not "history books," per se, but basically books about historical topics pertaining to England that interested him: https://en.wikipedia.org/wiki/A_History_of_the_English-Speaking_Peoples. They were very popular during his day.

Oh yes, I'd forgotten about Winnie. I have a lot more respect for science and literature prizes than the peace prize though. Harder work, I reckon.