Ender's Game
by Orson Scott Card
Published in 1985 (I finished it on December 02, 2016)

It was only after reading this book did I check to see when it was written. Hard to believe it’s that long ago since the technological predictions are well done. I found it highly entertaining and even though it follows the traditional YA pattern, it’s a wondrous hero’s journey to undertake.

So many books … (you know the rest)