"This is not a fairy tale" is a philosophical treatise by Denis Diderot, which provokes the reader to think about the nature of fairy tales and literature. The author reveals deep philosophical thoughts about art and creativity with the help of allegories and dialogues. Through the prism of a constant dialogue between the author and the reader, the book makes you think about the essence of the word, image and reality. "This is not a fairy tale" is a work that challenges traditional ideas about the world of literature and leaves open the possibility of its own interpretation and interpretation.