Metalinguistics is the branch of linguistics that studies language and its relationship to other cultural behaviors.[citation needed][dubious ] It is the study of dialogue relationships between units of speech communication as manifestations and enactments of co-existence.[clarification needed] Jacob L. Mey in his book, Trends in Linguistics,[1] describes Mikhail Bakhtin's interpretation of metalinguistics as "encompassing the life history of a speech community, with an orientation toward a study of large events in the speech life of people and embody changes in various cultures and ages.