This is a collection of studies of identity in the framework of Conversation Analysis. Many of the essays make explicit use of Harvey Sacks's descriptions of the “membership categorization devices” by which people construct attributions of identity in the course of interaction, as a way of accomplishing particular, situated goals. Many mount explicit arguments against psychological accounts of personal identity and social categorization according to which people bring preexisting identities into interactions. With one or two exceptions, the contributions are well argued, clearly written, and free of the jargon that sometimes makes work in Conversation Analysis inaccessible to outsiders. Readers of Language in Society should find the collection thought-provoking.