Ender Series

Good suggestions already ITT, so I'm not gonna repeat. All of Enderverse by Orson Scot Card is simply excellent. Ender's game is a nice peak into what goes on in the whole series. A mash between true strategy, relationships, personal development, philosophy and is very engaging. However the rest of the Ender series deal mainly with philosophy. Plenty of nuggets there. Additionally Shadow's saga is situated on Earth and is about strategy and competing. Highly recommended too.

Hey, I'd say Snow Crash (for history in geekery). The Ender series. Some of Neil Gaiman (I do love TPratchett, though not on this list) .. At the moment I'm a lot into short stories, and that'd mean Ted Chiang of course, and Greg Evan, as well as some of Vinge Vernor.

1984 (George Orwell) Fountains of Paradise (Arthur C Clarke, Space Elevator SciFi) Dune Series (Herbert) Ender Series (Orson Scott Card) 2001 Series (Arthur C Clarke)