What is the essence of reality? A question that echoes over time, stimulating minds on a tireless search journey of answers. In the midst of this intellectual endeavor, Yan Vesterhof''s book comes within the series "Literary Views" to put us in front of a deep mirror that reflects the concepts of existence and its dimensions. The book delves into exploring the nature of "reality", reviewing a wide range of opinions and theories that philosophy, physics, and knowledge sciences throughout the ages. This work is not just a contemplation of what reality is, but rather an invitation to the reader to transcend the visible surfaces to the depths of existence, on a journey that extends from eternal questions to modern intellectual experiences.