From the Royal Society website...
Royal Society Winton Prize for Science Books
Mark Miodownik’s Stuff Matters has won the 2014 Royal Society Winton Prize for Science Books.
This prestigious prize celebrates outstanding popular science books from around the world and is open to authors of science books written for a non-specialist audience.
The winner was announced at a public award event on 10 November 2014. The author of the winning book receives £25,000 and £2,500 each is awarded to the authors of the five shortlisted books.