Mr. Adnan Oktar born in Ankara in 1956, has dedicated his life to telling of the existence of Almighty Allah to intellectually defeat of materialist ideologies. He is writing his books under the pen name of Harun Yahya. 

Through his books, have come to grow more deeply in their faith. His books were translated in to 73 different language. Mr. Adnan Oktar's most influential book against Darwinism has been the Atlas of Creation.

This magnificient work of Harun Yahya, Atlas of Creation caused an "ideological earthquake" in Europe especially among Darwinists.

Harun Yahya websites are visited monthly by more than 47 million people from 167 countries. More than 500 newspapers and journals publish Harun Yahya article in 70 country. More than 5,000 conferences are held from Australia to Canada in most prominent universities of the world.