About the book: 2017 / Why did societies of Antiquity and the early Middle Ages treat the color blue with complete indifference? Why, starting from the 12th century, has it gradually gained popularity in all areas of life, and blue tones in clothing and in everyday culture become desirable and prestigious, significantly surpassing green and red? The study of the French historian is devoted to understanding the history of relations between Europeans and the color blue, which is fraught with many mysteries and surprises. From this book the reader will learn what social, moral, artistic and religious values ​​were associated with him at different times, as well as what his prospects are for the future.