Grigor Narekatsi (Gregory of Narek) was an Armenian monk, poet, mystical philosopher, theologian and saint of the Armenian Apostolic Church. He is also recognized as a saint of the Roman Catholic Church. On 21 February 2015, it was announced that Saint Gregory of Narek would be named a Doctor of the Catholic Church by Pope Francis.​

For about 11 centuries The Book of Lamentations of Grigor Narekatsi fascinates and captures the reader, heals, educates and brings up generations. A great many Armenian and international scientists and historians, artists, writers and poets, publishers and printers have taken a great interest in Narekatsi and his works. The encyclopedia contains Narekatsi's works with about 150 articles and materials devoted to him, up to 600 colour, black and white pictures, Armenian, Cilician and Vaspurakan miniatures, paintings, etc.