When A.A. Milne and E.H Shepard first came together in 1923 to create the world of Winnie-the-Pooh and his companions in the Hundred Acre Wood, no one could have foreseen the impact this unique collaboration was going to have on children’s literature and, indeed, children, all over the world. Now, one hundred years on, the characters they created are still as cherished as they ever were. Millions of books in fifty different languages have been sold around the world; films have been huge global box-office successes; merchandise from pyjamas to placemats – all have contributed to keep...