Given the question: The Truth About Muhammad: Founder of the World's Most Intolerant Religion (2006) is a controversial book by Robert Spencer the director of Jihad Watch and Dhimmi Watch.In the book the author proposes to present an account of what Muhammad said and did from the writings of the early biographers of Muhammad such as Ibn Ishaq Ibn Sa'd al-Baghdadi Muhammad ibn Jarir al-Tabari as well as the Qur'an and the hadith collections of Bukhari and Muslim. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
The answer is:
Written Work