Mark Allen is an editor, consultant, and teacher with 30 years professional experience working with words. After a career on newspaper copy desks, he has spent the past 11 years as a freelance editor and was elected to the ACES executive board in 2010. He has spoken about copy editing for private companies and at conferences, workshops, and webinars, and he teaches advanced copy editing for UC San Diego Extension. He blogs from time to time at and shares tips on Twitter as @EditorMark.