I tend to read part of a book and then go to another and then back to the first. (ADD thing). But I was reading Bombs Away: the Hot War by Harry Turtledove, an alternate history novel. Atomic war breaks out in 1952 when the allies start to lose the Korean War.
Another thing I was reading was The Pillars of the Earth by Ken Follet, and The Lord of the Rings by J.R.R. Tolkien. Almost finished Book V of the latter.