Universality is a fitting finale to the lovers of the emerging sciences. While it isnt really part of a trilogy, for readers looking to travel the path of the fractal, this book is definitely the third and final, in a journey beginning with "Chaos" by James Gleick being the first, and "Complexity" by Mitchell Wardrop being the second.
The book is quite desultory and slow to begin with, in fact the action picks up briefly in the 26th page and then takes off from the 50th page. So stick with it. Much unlike its precursors however, Universality is less mathematical and abstruse and more easy to read. It covers a wide range of examples on systems displaying Universality and does well to throw light on the history of the theory's development to the current issues it is addressing.
A good book, definitely worth a read from your library.