1. Introduction James Clackson, Patrick James, Katherine McDonald, Livia Tagliapatra and Nicholas Zair; 2. Inter-ethnic mobility in pre-Roman Etruria: the contribution of onomastics Daniele F. Maras; 3. Elusive migrants of ancient Italy Elena Isayev; 4. The language of mobile craftsmen in the Western Mediterranean Katherine McDonald and James Clackson; 5. Lost – and found – in transmission: the creation of the Oscan alphabet Karin W. Tikkanen; 6. Mobility and orthography: a contextualisation of variant spellings in the Oscan inscriptions in the Greek alphabet Livia Tagliapietra; 7. The Mamertini in Messina: mobility, migration and mercenaries Nicholas Zair; 8. Migration, identity, and multilingualism in Late Hellenistic Delos Francesco Rovai; 9. Interpretes, negotiatores and the Roman army: mobile professionals and their languages Rachel Mairs; 10. 'HOC PRIMVS VENIT': Italians and others in Egypt before the Caesars Patrick James; 11. Population, migration and language in the city of Rome Olivia Elder.