+994 12 404 1000 (office) +994124048978 (direct) +994554000578 bookfair@ceo.az
+994 12 4041000 (office) + 994 12404 1041 (direct) +994 77 277 70 41 +994 12 4041001 pr@ceo.az
+994 12 4041000 (office) +994 12 404 10 30 (direct) +994 77 277 70 30 +994 12 4041001 technical@ceo.az