Arnheim, in his essay, deals with the fundamental contradiction between the Second Law of Thermodynamics, which states that in the material universe, disorder increases, and the fact that humans fundamentally strive for the achievement of order in what they create. To reconcile this contradiction, Arnheim emphasizes that the law of entropy reflects not only the decay of material form but also a general tendency towards increasing balance through the reduction of tension.

The psychology of art is never as simple as the alphabet, but this book avoids the general dullness typical of essays of this kind. However, it is demanding on its readers. It will sharpen your mind, perhaps making it feel pain akin to that felt by a lazy muscle after a bit of unusual exercise.

With appropriate modesty and occasionally brilliant style, the author engages with the interaction of elements, drawing on his extensive knowledge and experience in experimental psychology.