Obviously I can not write an introduction for you but I hope the following will spark a creative flame to assist you in your analysis.

In the novel The Kite Runner by Khaled Hosseini, the ending of the novel appropriately concludes the work. The main theme for the novel is redemption.  As a  young man, Amir shamed himself by watching Hassan be raped and not trying to help.  He deals with this shame by further harming Hassan and driving him out of the employ of his family.  The novel comes full cycle when Amir rediscovers his Islam faith, discovers that Hassan was his half brother, rescues his newly discovered nephew from suicide and adopts him. At the end of the novel the reader discovers Amir's final redemption in the concluding pages of the novel.

Then on a cool rainy day in March 2002, a small, wondrous thing happened." At a party conducted by the American Afghan community, Amir buys Sohrab a kite. The two of them win the kite flying contest together just he and Hassan had done many years ago. Amir is Sohrab's kite runner and the novel ends with Sohrab smiling for the first time for Amir.

Hopefully the links below will assist you further.