Rates vary depending on the type of work involved, from simple copy-editing to structural editing of material in our own areas of subject expertise. Similarly, a simple index for a short non-technical publication would cost less than a complex conceptual index for a graduate textbook. Notional hourly rates vary from under $60 to over $100, depending on the expertise required and the urgency of the job. We are happy to provide a firm quotation on seeing the manuscript and agreeing with you on what level of editing you require.