If you consider the patterns in nature to be art (which I do!), you might enjoy the book "The Computational Beauty of Nature" by Gary William Flake. [0]

The subtitle is "Computer Explorations of Fractals, Chaos, Complex Systems, and Adaptation".

It's a wonderful book to own as a physical copy, and the contents are very inspiring for generative art.

[0] https://www.amazon.com/Computational-Beauty-Nature-Explorati...

For something in a similar vein, but perhaps more approachable, check out The Computational Beauty of Nature (http://www.amazon.com/The-Computational-Beauty-Nature-Explor...).