Frontmatter -- Acknowledgements -- Contents -- Abbreviations -- List of Figures -- List of Tables -- Introduction -- 1. English as a lingua franca: Why creativity? -- 2. Creativity, idiom and metaphor -- 3. Describing ELF: Analyzing VOICE -- 4. Creative idioms in ELF interactions: Exploring forms -- 5. Functions of creative idioms and metaphors in ELF interactions -- 6. Metaphorical creativity in ELF interactions: Discovering patterns and systematicities -- 7 .The multilingual dimension of metaphorical creativity -- 8. Implications of metaphorical creativity -- Appendix -- References -- Index