Common Errors in English

Mixed-up, mangled expressions; foreign-language faux pas; confused and confusing terms; commonly mispronounced words – they’re all explained in Common Errors in English by Paul Brians.

The concept of language errors is a fuzzy one. I’ll leave to linguists the technical definitions. Here we’re concerned only with deviations from the standard use of English as judged by sophisticated users such as professional writers, editors, teachers, and literate executives and personnel officers. The aim of this site is to help you avoid low grades, lost employment opportunities, lost business, and titters of amusement at the way you write or speak.

It’s available on Amazon, but when it’s available free online and is updated regularly, why buy? The supplementary pages are also worth a look (non-errors, more errors, and commonly misspelled words).