1. The Holy Bible – 6 billion
Taking position one in the list of best selling books is the Holy Bible. This is no surprise at all, as this book is the very foundation on which millions of Christians across the world base their teachings. The bible dates back to 1450, and since then about 6 million copies have been sold.
In short, Books symbolize intelligence and a sense of imagination. They have remained to be part and parcel of our lives. The above books are indeed the ones that have moved the world and millions of their copies keep on selling across the world.