I-IV -- Contents -- Introduction -- Section 1 General issues and new frontiers -- Codeswitching, codemixing, and code alternation: What a difference -- Codeswitching: An unequal partnership? -- Conveying a broader message through bilingual discourse: An attempt at Contrastive Codes witching research -- Section 2 Language norms and models and how to describe them -- Taxonomic or functional models in the description of codeswitching? Evidence from Mandinka and Wolof in African contact situations -- Structural uniformities vs. community differences in codeswitching -- Meaning and form in code-switching -- The relationship between form and function in written national language-English codeswitching: Evidence from Mexico, Spain, and Bulgaria -- Section 3 Patterns and styles in codeswitching -- Banana split? Variations in language choice and code-switching patterns of two groups of British-born Chinese in Tyneside -- Variability in code-switching styles: Turkish-German code-switching patterns -- Section 4 The historical perspective: Genetics and language shift -- Is genetic connection relevant in code-switching? Evidence from South Asian languages -- Codeswitching as an indicator for language shift? Evidence from Sardinian-Italian bilingualism -- Bibliography -- Index