Books like Principles and methods for historical linguistics by Robert J. Jeffers

Unrivalled in its popularity, The Study of Language is quite simply the best introduction to the field available today. It introduces the analysis of the key elements of language - sounds, words, structures and meanings, and provides a solid foundation in all of the essential topics, such as how conversation works, child language, and language variation. This third edition has been extensively revised to include fresh study questions, a comprehensive glossary, and new sections on important contemporary issues in language study, including language and culture, slang, gestures, and African American English.

In The Word on the Street, John McWhorter reveals our American English in all its variety, beauty, and expressiveness. Debunking the myth of a "pure" standard English, he considers the speech patterns and accents of many regions and ethnic groups in the U.S. and demonstrates how language evolves. He takes up the tricky question of gender-neutral pronouns. He dares to ask, "Should we translate Shakespeare?" Focusing on whether how our children speak determines how they learn, he presents the controversial Ebonics debate in light of his research on dialects and creoles. The Word on the Street frees us to truly speak our minds. It is John McWhorter's answer to William Safire, transformed here into everybody's Aunt Lucy, who insists on correcting our grammar and making us feel slightly embarrassed about our everyday use of the language. ("To whom," she will insist, and "don't split your infinitives!") He reminds us that we'd better accept the fact that language is always changing - not only slang, but sound, syntax, and words' meanings - and get on with the business of communicating effectively with one another.