The author Terry Pratchett – whose novels have sold millions of copies worldwide – has been made a knight in the New Year Honours list.-BBC News Following in the footsteps of the likes of The Beatles and Sting, as well as 598 other worthy individuals this year, Terry Pratchett has become a Member of The Order of the British Empire. Sir Terry , 60, best known for his hugely popular Discworld series of comic fantasy novels, has sold more than 55 million books worldwide. A few years ago there was an Alzheimer’s study of a bunch of nuns. This study…