This Book Has Two Related Purposes. The First Is To Demonstrate The Extent And Importance Of Language Play In Human Life; The Second Is To Draw Out The Implications For Applied Linguistics And Language Teaching. Language Play Should Not Be Thought Of As A Trivial Or Peripheral Activity, But As Central To Human Thought And Culture, To Learning, Creativity, And Intellectual Enquiry. It Fulfils A Major Function Of Language, Underpinning The Human Capacity To Adapt: As Individuals, As Societies, And As A Species.