In 2011, Sheikh Karwan Barzani, owner of the Ketin Horse Club, wrote a book about horses in Kurdistan and the biography of Mulla Mustafa Barzani. He is the grandson of Mulla Mustafa Barzani, the first leader of the Kurdish Democratic Party. This project took five years. In 2015, a 280-page book was printed in 2,000 copies. At a ceremony, it was given to all the ambassadors.