Proofreading is the process of reading a text to find and correct errors in grammar, spelling, and punctuation. There are three main types of proofreading: mechanical, stylistic, and substantive.
Mechanical proofreading is the process of checking for errors in grammar, spelling, and punctuation. This type of proofreading is usually done by a computer program or a professional proofreader.
Stylistic proofreading is the process of checking for errors in style, such as sentence structure, word choice, and tone. This type of proofreading is usually done by a professional editor.
Substantive proofreading is the process of checking for errors in the content of a text, such as factual errors, inconsistencies, and plagiarism. This type of proofreading is usually done by a professional editor.