People of the Book is a term used to refer to Jews, Christians, and Muslims. These three religions all share a common belief in the Bible, which was written by the ancient Israelites. This book is known as the Torah for Jews, the Bible for Christians, and the Qur'an for Muslims. Therefore, all of these religions are considered to be "People of the Book" since they all share this same sacred book. The Bible and the Qur'an both contain stories, teachings, and instructions that are important to the followers of each faith. Although the religions differ in beliefs and practice, they all share a common connection to the Bible.