Read what the Guardain reviewer has to say about  this series.

"Divergent isn't just another book in a long line of dystopian novels – it really is something else. It's the first book in the compelling series by Veronica Roth, set in future dystopian Chicago, where people have been split into five factions according to their personal qualities. Beatrice Prior is faced with the impossible task of choosing whether to betray her family and leave Abnegation, the faction she has grown up in, or take the giant leap to a whole new way of life somewhere else.

http://www.theguardian.com/childrens-books-site/2014/jan/13/review-divergent-veronica-roth