If you already track your cookbook collection somewhere else — LibraryThing, Goodreads, Eat Your Books, or a spreadsheet — you can bring it over to Cookbooker in one go using the import tool.
Go to Bookshelf → Import your collection to get started.
If a book in your export has an ISBN but isn't in the Cookbooker catalogue yet, it appears in an Add to Cookbooker section. Check the ones you want and Cookbooker will create a basic entry — title, author, and ISBN — and attempt to fetch a cover automatically from Open Library.
Community cookbooks, church fundraiser books, and self-published titles often have no ISBN. These appear in a No ISBN section. For each one you can search the Cookbooker catalogue to find an existing match, or choose to create a new entry from the title and author in your export file.
Covers for no-ISBN books can't be fetched automatically. Once the import is complete, visit the cookbook's page and click Edit to upload a cover manually.
Covers are fetched in the background after import and will appear on your shelf shortly. If a cover doesn't appear after a few minutes, you can add one manually from the cookbook's edit page.
Yes — Cookbooker checks what's already on your shelf and won't add duplicates. Books already there appear in a separate Already on your shelf section so you can see them, but they won't be imported again.