What are proofreading and editing services and who needs them?

Proofreading involves the correction of texts, mainly grammatical and spelling errors, typing errors are also corrected. Editing is mainly concerned with the style of writing and differentiated use of vocabulary. Proofreading and editing are needed for every type of text. Not only publishers need them, but also anyone who publishes marketing brochures and websites, as well as journalists and the press.