Ender is supposed to be a nickname for Andrew I believe? I read them yonks ago.

Anyway, did you ever notice Ender's Game could be a play on the term end game? I just noticed that myself today.

Did you also know that even though Ender's Game is the most successful and well-known book in the series, Card only wrote it because he thought he needed a sufficient backstory in order to write Speaker for the Dead? Ironic as Ender's Game is the one most people talk about and many people have only read that and none of its sequels. I think I do prefer the later books, though I thought they got a bit bogged down near the end.
We are what we repeatedly do - Aristotle