* Spelling/Grammar: Proofreaders need to have a mastery of the written word. They need to understand how a sentence is read, and how a sentence is spoken. Being proficient in language and writing style is crucial.
* Attention to Detail: Proofreaders need to make sure every comma is in place and every word is spelled correctly.
* Teamwork: Proofreaders work with a team that includes editors, authors, typists and other proofreaders. Being a team player helps get the job done.