Besides my new views about the unification of the fundamental forces and the physical theories I describe in the book, considered it necessary to describe, the scientific views, existing up to now about the elementary particles, the fundamental forces and the unifications. Thus I wished to inform the readers of the book, about the already existing views. In this way, I believe that the readers, after having been informed about the current data, will form a complete idea about the subject of the unifications and will be able to better understand the new views which book suggests. At the same time, those who will not agree with the ideas and the new views of the book will at least have benefited by getting informed about the already existing and established views. However, I believe that the readers even in the case they will not agree with the author, will see that the book in hand, opens new horizons and generates new thinking on the issues of the unifications.