Everything by Churchill: the six volume second world war series, The World Crisis (his first world war series) , Marlboro, His Life and Times, A History of the English Speaking Peoples, and everything else of his you can lay hands on. Since his take on WW II was somewhat biased, also read the three volume set: The Last Lion.
If you want to learn how to write, and to get a handle on how to think, you MUST read Churchill. That'll keep you busy for a while and off Luminous Landscape.