Frédéric Delavier is a French author of books on bodybuilding, who also became a philosopher. His book Guide to Bodybuilding Movements was first published in 1998 and was a worldwide bestseller, with over two million copies sold. It has been translated into more than thirty languages. He is also known as an educational and critical videographer on his YouTube channel. He recently published a treatise on philosophy, The Awakening of Consciousnesses (L’Éveil des Consciences), which is awaiting translation into English.