Indonesian children hunt for books from a mobile library on horseback as Mr Ridwan Sururi (partially hidden, with hat) compiles a book list for villagers in Serang, a quiet hamlet fringed by rice fields and a volcano on Indonesia's main island of Java. Mr Ridwan, a 43-year-old professional horse groomer, thought of a unique way to encourage reading in his district: He travels between villages with books stored in boxes balanced on a horse's back.