Muhammad (S), the Prophet of Islam, remains the most intriguing historical figure. To the believers, he (S) is simply the best human being that ever lived and will ever be born. These days, thanks to both the unbelieving detractors and the misguided believers, Muhammad (S) has become a hot topic who is judged through the prism of extremism. Whether one likes him or not, the Prophet (S) of Islam has changed the course of human history forever and thus, remains the most influential human being in history whose significance on global affairs cannot be ignored. And there is no better way to study about Muhammad (S) than the original sources that are reliable. In this book, the authors provide the sources of information on the life of the Prophet (S). They also deal with some topics of interest that were previously left out by some biographers.