The document provides biographical information about the author Harun Yahya and an overview of his works. It states that Harun Yahya writes under a pen name and was born in Ankara in 1956, studying arts and philosophy at university. It notes that since the 1980s he has published many books on political, scientific, and faith-related issues that have helped people strengthen or better understand their faith. The document emphasizes that Harun Yahya's books aim to encourage thoughtful consideration of faith and refute anti-religious ideologies using evidence-based arguments.