The book "Blue" by Jürgen Goldstein offers an in-depth exploration of the color blue and its cultural significance. In an engaging and associative style, the author delves into the many facets of blue, which is omnipresent in our world. From the symbolism of the blue planet to the artworks of Yves Klein, as well as literary references and everyday objects like blue jeans, the color is illuminated in its depth and power. Goldstein connects various meanings, creating a fascinating reading experience that is both informative and inspiring. This book is an invitation to rediscover the world of blue and to explore the emotions and associations it evokes.