Question: Adnan Oktar wrote which series of creationist books under the pen name "Harun Yahya"?
Sentence (from "Adnan Oktar"): Oktar runs two organizations of which he is also the Honorary President: "Bilim Araştırma Vakfı" (BAV, literally, "Science Research Foundation", established 1990), which promotes creationism and "Milli Değerleri Koruma Vakfı" (literally, "National Values Preservation Foundation", established 1995) which works domestically on a variety of moral issues.
Relevant evidence: No