What’s the difference between a reprint and a new edition?
A reprint means more copies are being printed with no substantial changes. Perhaps a few typos are being fixed. A new edition means that there has been substantial change: content has been altered in a way that might make a customer complain that this was not the product that was expected. Or, text has been changed to add a new feature, such as a preface or appendix or additional content. Or, content has been revised. Or, the book has been redesigned.