Drawing deep attention to healthy and bodybuilding and consequently treating human psyche have been perpetually under careful consideration of the ancient Iran. The remained roles and impacts of an antiquity, and the most important heroic literary works which its magnificence and grandeur epitomize in Firdausi's epopee. They are all abundant of commands, contents, and recommendations that are given to the bodybuilding and improving the human psyche. Among total heroic sports in the ancient times, the wrestling has a glorious and peculiar position. Probably, it can be courageously said that the wrestling was an exclusive sport of the Iranian tribes based on its particular feature. Through the social customs and culture, other nations and countries are lesser observed such movements for remedying personality and bodybuilding. According to the book's title, it is a treasure of the Freestyle Wrestler's techniques and expertise, and is one of the most complete and authentic sources for this branch of the Iranian ancient sport. This book has been trained a variety of the Iranian wrestling techniques with rarely pictures through the abundant attention and effort, and a name of each technique is declared due to an exact movement that has performed by the wrestling masters. Incredibly, this book is a precious selection for the whole people who are looking for an accession and investigation on the history of the ancient sports' evolution in the old nations and countries. The author and the researcher of the book, A Technical Treasure of the Freestyle and the Greco – Roman Wrestler, Abulghasem Rayegan was born in 1310 SH ('Shamsi Hijri' or 'Solar Hijri'). For several years, he has been served as a wrestling instructor in many countries. During his life-span, the author was utilized and experienced by some wrestling distinguished champions and ringmasters. Afterwards, he himself was in charge of a remarkable garment and referee with an international topmost rank. [The related documents attached to an affirmation of FILA]

Initially, Rayegan Tafreshi led the wrestling team in the city of Saveh for five years, and achieved the championship title of Tehran province's club houses. Then, he made the wrestling team of Tehran Sport University as the champion title of Iranian universities, and served for fourteen years as the secretary of the Iranian School Wrestling Association. His report card registers his coaching for the Iranian youth team and winning as the vice-championship of the Asian contest with this team, as well as overseeing the country university's the wrestling championships. Abolghasim Rayegan Tafreshi also carried out valuable research in naming wrestling's techniques. In this book, Tafreshi teaches a variety of special techniques in the Freestyle and Greco-Roman Wrestling using the image of on-going wrestlers.