Editing is defined as the language check of a text to ensure that it follows the grammar, punctuation and spelling rules of the language in question. Any linguistic mistakes are corrected by an editor. Where the editor feels that the language quality of the text could be enhanced in terms of clarity and comprehensibility, he will add a comment to the text, making suggestions for improvement. Editors are not expected to identify or remedy any errors relating to the content of the text, but should they detect possible content-related problems, they may highlight these in the text. It is up to the client to evaluate the pertinence of all comments and take appropriate action. The editor will not correct any issues relating to the formatting or layout of the text.