Smolin's book has been top physics bestseller for several weeks in the US. By a nice coincidence, Woit's book is also currently top physics bestseller, in the UK. For instance, as of this morning 8 AM pacific Saturday 7 October the US amazon all-physics list http://www.amazon.com/gp/bestsellers/books/14545/ref=pd_ts_b_ldr/102-1454980-4598542 1. The Trouble With Physics: The Rise of String Theory, the Fall of a Science, and What Comes Next by Lee Smolin #241 2. This Is Your Brain on Music: The Science of a Human Obsession by Daniel J. Levitin #542 3. The Field: The Quest for the Secret Force of the Universe by Lynne McTaggart #661 4. A Brief History of Time by Stephen Hawking #931 5. Physics For Dummies (For Dummies (Math & Science)) by Steve Holzner #1027 6. The Road to Reality : A Complete Guide to the Laws of the Universe #1152 by Roger Penrose 7. The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory by Brian Greene #1170 The sales rank has been included---e.g. Brian Greene's book is #1170 among all books sold at US amazon. ====================== the UK amazon physics bestseller list as of same time, 8AM pacific http://www.amazon.co.uk/gp/bestsellers/books/278409/ref=pd_ts_b_nav/026-8303087-5718006 1. Not Even Wrong: The Failure of String Theory and the Continuing Challenge to Unify the Laws of Physics by Peter Woit #818 2. Advanced Physics by Steve Adams #1030 3. The Fabric of the Cosmos: Space, Time and the Texture of Reality (Penguin paperback) by Brian Greene #1130 4. Physics (Revise AS & A2) #1419 5. Fundamentals of the Physical Environment by Peter Smithson #1484 6. University Physics with Modern Physics with Mastering Physics by Francis W. Sears #1908 7. The Last Man Who Knew Everything: Thomas Young, the Anonymous Polymath Who Proved Newton Wrong, Explained How We See, Cured the Sick and Deciphered the Rosetta Stone by Andrew Robinson #2501 8. The Science of Discworld by Terry Pratchett #2594 I've included the UK amazon sales rank.