Editing involves correction, condensation, organization, rewriting, identification of grammatical errors, paragraphing and semantics (meaning of grammatical structures) and many other modifications performed with an intention of producing a correct, consistent, accurate and complete work. Proof reading involves a final check of the edited manuscript after authorial reviews for grammatical, spelling, and mechanical errors which may include problems with verb tense, subject-verb agreement, parallel structure, sentence completion, alternate spellings, capitalization and punctuation to ensure it is ready for printing and publishing