commas
Do not use commas before the words “and” and “or” in a series; e.g., Please complete sections one, two and three of the financial aid application. Exceptions include some official documents, such as the Commencement program and the college catalog. Use commas before and after a spouse’s name: He and his wife, Veronica, have two children. Do not use commas with “Inc.”; e.g., Cisco Systems Inc.