"This is a deep and important book that promises to send scholars in many different fields off on new paths in search of a grand unified theory of history." (Journal of Global History, 2011)

"A volume rich in data, theories, and questions posed and answered. Recommended. Upper-division undergraduates and above." (Choice , 1 April 2011)

"Personally, I think everyone should have access to this story, and I would put it at the heart of the national curriculum as well." (The Times Higher Education, September 2010)

"This book has convinced me not only that Big History is interesting and exciting, but has established a genuine intellectual basis for integrating historical knowledge, and historical method, with those of the natural world. This is a framework in which, ideally, all history should be investigated, taught and discussed."
—Prof. R.I. Moore

"The most exciting book that I've read in 30 years. A masterpiece!"
—Barry Rodrigue, University of Southern Maine