The book "Judeo-Khazar Correspondence in the Light of Original Documents" contains invaluable critical reviews that Kokovtsov made to manuscripts. The book in your hand which makes strong references to disciplines such as history, geography, language, literature, philology, etymology, and theology; offers new opportunities to field researchers. ?WHY HAZARS?? Is it so interesting in Turkish history that only the Khazars accept a different religion than others? You ask me in your letter which nation and which lineage I come from. I declare to you that I am one of the sons of Japheth, a descendant of Togarma. I found information in the genealogy books of my ancestors that Togarma had ten sons. Their names are as follows: Aviyor, Turis, Avaz, Uguz, Biz-l, T-r-n-a, Hazar, Yanu, B-l-g-r, Savir. I come from the sons of the seventh son - Hazar.? (From the response letter of Hazar Khan Yusuf-Extended version p.103) *** 'Then I herded particularly the troubled ones of the cut herd. I took two wands; I named one "Grace" and the other "Unity". So I started to herd. In one month I got rid of three shepherds. Because I was tired of the herd, and the herd was disgusted with me. / To the herd, I said '' I will not herd you anymore. Let you die or be slaughtered, and the rest of you eat each other's flesh. Then I took my wand called `` Grace '' and broke it to break the treaty I had made with all nations. Thus, the treaty was broken that day. The troubled flock watching me realized that the Lord's word was fulfilled. (Torah; Zechariah 11: 7-11.) P.61