This collection brings together a range of stories about aliens and our encounters with them. The stories don't necessarily portray aliens as hostile invaders. On the contrary, there are many stories that explore the interaction between aliens and humans, and other stories in which humans are themselves the aliens. Some of the stories have been specially written for this collection by writers such as Sue Welford. Others are by the best of sci-fi writers including Arthur C. Clarke, Ray Bradbury, Philip K. Dick, and Harry Harrison. The book is in the same series as the successful Young Oxford Book Ghost Stories , Young Oxford Book of Supernatural Stories , Young Oxford Book of Nasty Endings . This book is intended for interest age: 10+