He spent four years completing his book Laogai--The Chinese Gulag, the recent publication of which has caused quite a stir in the West, including reports and reviews in The New York Times, The Wall Street Journal, The Economist, The Spectator and all the main news media.
英文版出書後，在西方引起很大震撼，包括《紐約時報》、《華爾街日報》、《經濟學人》、《觀察家周報》等西方重要媒體都撰專文介紹。