Dhani Irwanto is a Senior Civil Engineer specializing in the fields of hydropower, dam and hydraulic structures. He is experienced in engineering of more than 300 hydropower plants and more than 20 multipurpose dam projects in Indonesia.
Environment, social life, culture and tradition in the regions where he grew up encourage him to deepen his knowledge about history of nations and civilizations. Armed with his knowledge and the existing references as well as site observations together with the projects he undertook, he conducted in-depth research correlated to history of civilization. He is authoring books about nations and civilizations.