John Louis Esposito (born May 19, 1940, in Brooklyn, New York) is a prominent American academic and scholar specializing in Islamic studies, Middle Eastern affairs, and interfaith relations. Of Italian-American Catholic heritage, he converted his focus to Islam during his academic career, becoming one of the leading Western experts on the religion. He earned his Bachelor of Arts from St. John's University in 1964, a Master of Arts from the same institution in 1966, and a PhD in Religious Studies and International Relations from Temple University in 1974. Esposito joined Georgetown University in 1979, where he currently serves as Professor of Religion, International Affairs, and Islamic Studies. He founded and directs the Prince Alwaleed Center for Muslim-Christian Understanding (established in 1998) and also directs the Bridge Initiative at Georgetown, focusing on Islamophobia research and combating anti-Muslim discrimination. He has authored or edited over 50 books on Islam, including influential works like 'Islam: The Straight Path' and 'The Oxford Dictionary of Islam.' His research explores the intersections of religion, politics, and society in the Muslim world, with emphasis on promoting Muslim-Christian understanding. Esposito has been a key voice in policy discussions, advising U.S. government bodies and international organizations on Islamic affairs, while also engaging in public advocacy against anti-Muslim sentiment. His work has faced some criticism for perceived biases, though he maintains a commitment to balanced analysis.