The missing antimatter

As we know that when the Universe was starting, Matter and Anti-Matter were made in equal quantity, then in today's time we get to see only Matter all around us, where did that Anti-Matter go. This question remains a mystery till date. So in this book, I have first collected the definitions of Antimatter from various mediums and have written them first and after that I have presented the answer to what was called Anti Matter on the basis of my research, which is the last topic of this book.