John Farndon is an internationally known author of over 300 books, including the award-winning New York Times bestseller Do Not Open. His children's books have been honored with numerous prizes, including Science Books and Films Best Books for Children, and his Practical Encyclopedia of Rocks and Minerals was one of Scientific American's top-15 selling books. He has been shortlisted a record four times for the Junior Science Book Prize. Find him at johnfarndon.com.