He chaired art juries in various events including the "Fine Arts Festival" in Bahrain (1997, 2000), the 6th Sharjah International Biennial (2003), Oman Fine Arts Festival (2006). He also participated in Liège Biennal (Belgium), Cairo Biennal, Dakar Biennal, and in other cities. A number of artists and theater directors have chosen Dagher's poems as subjects for their exhibitions or drama performances:     Dagher published several major works which have received high praise from diverse groups of critics in the Arab World. His long list of publications on modern Arabic art and Islamic art includes: