<p><b>Why information is the unifying principle that allows us to understand the evolution of complexity in nature</b><br><br>More than 150 years after Darwin¿s revolutionary <i>On the Origin of Species</i>, we are still attempting to understand and explain the amazing complexity of life. Although we now know how evolution proceeds to build complexity from simple ingredients, quantifying this complexity is still a difficult undertaking. In this book, Christoph Adami offers a new perspective on Darwinian evolution by viewing it through the lens of information theory. This novel theoretical stance sheds light on such matters as how viruses evolve drug resistance, how cells evolve to communicate, and how intelligence evolves. By this account, information emerges as the central unifying principle behind all of biology, allowing us to think about the origin of life¿on Earth and elsewhere¿in a systematic manner.<br><br>Adami, a leader in the field of computational biology, first provides an