The physicist David Bohm and the artist Charles Biederman wrote letters to each other on relationships between art and science, amounting to 4000 pages! This book presents some of these letters, edited by Paavo Pylkkanen. The letters are fascinating, brimming with ideas, and even opening the book at random and reading a few lines provides something to think about. Bohm, as seen earlier in a review of his biography, sought to find the universal principles of life, the inner reflecting the outer, and vice versa. Biederman, a structurist in his artistic style, tried to represent the structure of reality through geometric planes. Among the aspects they discussed was how the past existed in the present, each moment therefore, representing an inexhaustible totality. They discussed art, physics, nature, time, relativity, identity, and a lot more. A refreshing book to delve into, to look at two intellectuals exploring the nuances of life.