If your current Author Central account is not with Amazon.com, but with one of the following instead:
You should immediately open another Author Central account with Amazon.com to gain the full range of editing access to your books’ details. An Author Central account established with Amazon.com allows you to have up to three noms de plume. Different noms de plume come handy when you write books that cross categories or genre drastically. For example, if you are quite established on political science but all of a sudden want to try your hand on paranormal romance, you are probably better off publishing your experimental romance under a different name than the one that appears on your political science books, lest you startle your readers and lose their loyalty.
However, the more important advantage you gain with an Author Central account with Amazon.com is the access to edit the descriptive details of all your books affiliated with all your noms de plume. Seeing is believing. The following screenshot comparison, courtesy of UK-based author Mr. Philip Henly, should be able to convince you:
The first screenshot shows the book detail interface when Phlip logs into his Author Central account with Amazon.co.uk:
There does not appear anything editable there.
The second screenshot shows you what Philip gets when he log into his Author Central account with Amazon.com. He gets tabs of editing interface: Editorial Reviews, Book Details and Book Extras, each of which presents multiple editable fields.
Last but not least, you get separate three-tab editing access to a different edition (a.k.a., format. such as paperback or audio,) as shown in the third screenshot:
You can do wonders with these three editing tabs. (For details on that, check out my latest popular book KDP’s Best-Kept Secret Revealed: How to Embed Videos and Widgets in Your Book Description.)
So if your KDP home base is not Amazon.com, start by opening an Author Central account with Amazon.com.
So do yourself a favor, open up an Author Central account with Amazon.com today. And if you are serious about taking advantage of this secret tunnel to book marketing, read KDP’s Best-Kept Secret Revealed: How to Embed Videos and Widgets in Your Book Description.