Bear Grylls OBE is known around the world as one of the most recognized faces of survival and outdoor adventure. He spent three years in the British Special Forces serving with the 21 SAS Regiment which is where he learnt many of the survival techniques skills he is known for today. His autobiography, Mud Sweat and Tears, spent 15 weeks at Number 1 in the Sunday Times bestseller list and he has written over 100 books, selling in excess of 20 million copies worldwide. His latest book The Greatest Story Ever Told went straight in at Number One in the Bestseller List.