Would you even give the prize to someone who recommeds you not one but three books? I am an expert on International Organizations and International Relations as well, and I can tell you that it is impossible to have an approach about the current international politics in just one simple book. Sure you may know, books complement each other and then is your personal perspective about facts.
mam i hope you will check my 2nd entry #27 . I think it would be the best book as per the current situation of the world politics between Afghanistan, Taliban & USA. Will be waiting for your reply, rating & feedback. Thanks