General details for a book include basic bibliographic information. (Other book settings are specific to Google Books or Google Play.) You can edit this information by visiting the Book Catalog in your Partner Center account and clicking a book title. If you wish to make edits for multiple books at once, consider using a spreadsheet.
Although only the ISBN (or other identifier) and title are required, you should complete as many fields as possible, as richer data could help readers discover your books.