This is the first of a science fiction series of books dealing with gaming and the future.  Intense is a word for this world of gaming. The population of this future world is controlled and to have more than two children parents must get permission. With permission Ender is the last of three children, bred to be a genius.  His brother and sister are also very smart.  Ender Wiggin is over the top and must learn how to survive is a school of geniuses.  He is selected for a special military training school, leaving his family behind.  He is close to his sister Valentine, who is a genius in other ways such as knowing how people think and plan before they do.   Peter is a bully and can be dangerous.   The Battle school takes up all of Ender's time once he moves there with no vacations.  Will he learn enough skills to save the planet from the next encounter with the aliens?  This is a great read for boys in middle school.
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Study Guide for Ender's Game