Robert Spencer is an American author and commentator known for his writings on Islam and Islamic extremism. He is the director of the website Jihad Watch, which focuses on issues related to jihad and Islamic terrorism. Spencer has published several books, including The Truth About Muhammad and The Politically Incorrect Guide to Islam. Spencer often speaks at conferences and events, advocating for a critical examination of Islamic texts and teachings. His work has sparked both support and controversy, as some view him as a defender of free speech, while others criticize him for promoting anti-Muslim sentiments.