An Oxford, or serial, comma is the last comma in a list; it goes before the word "and." Technically, it's grammatically optional in American English. However, depending on the list you are writing out ...

In the first part of the series on “Understanding the conventions of academic writing”, I discussed these two common error patterns: i) Missing comma after ...

THE OXFORD COMMA is a form of punctuation – but it’s become a cause of much debate over its usage. So when should you use it and where? We all use commas when writing lists of things. But the Oxford ...