Karen Armstrong, FRSL, OBE, is an English author and former Catholic nun who has written multiple books on the subject of comparative religions, particularly regarding the Abrahamic faiths of Christianity, Judaism, and Islam. Post-9/11, she became an advocate for Muslims and has spoken in front of both the US Congress and the UN regarding religious issues. Upon winning the 2008 TED Prize, she used the opportunity to create the Charter for Compassion, a document around which religious leaders can work together to create peace.