Language Turned on Itself examines what happens when language becomes self-reflexive; when language is used to talk about language. Those who think, talk, and write about language are habitual users of various metalinguistic devices, but reliance on these devices begins early: kids are told, 'That's called a "rabbit"'. It's not implausible that a primitive capacity for the meta-linguistic kicks in at the beginning stages of language acquisition. But no matter when or how frequently these devices are invoked, one thing is clear: they present theorists of language with a complex data pattern....