Ender's Game by Orson Scott Card is a science fiction book that was written in 1977 but remains timeless. The main plot of the book is that the government on Earth needs a savior to keep the planet from being overtaken by "buggers"-- alien-like invaders from a far-away planet. Ender is carefully groomed to be that savior beginning at the age of 6. He is put through many trials and games, often grueling and cruel, to prepare him for the final battle with the buggers. There is a great twist at the end of this book that even suspicious me didn't expect.
There is loads of symbolism in this book and it has been used to study literary elements in some schools.
I read this book because it is one of the Battle of the Books books for the 2008-2009 school year. I also wanted to read this book because the author was recently under fire for being honored for his lifetime contribution to young adult readers with the Edwards Award. The controversy stems from Card's extremist personal views. To learn more about this, read this School Library Journal article.