books.google.co.uk - With more than a billion followers, Islam is the world's fastest-growing religion and a major global religious and political force in the 21st century. It is also the subject of much misunderstanding, and many people know little of its origins or principles. Here is the perfect introduction to this...http://books.google.co.uk/books/about/What_is_Islam.html?id=IagQAQAAIAAJ&utm_source=gb-gplus-shareWhat is Islam?