2GraceCollection
Not exactly. You can export books from one library and upload that file into the other library, but a lot of information is missing from export files, including cover selections, other authors, comments, 'from where' information, and so on, which would need to be redone in the new account.
This would not be a 'transfer' in the traditional sense — unless you delete the books from the first account, they would still exist there. There is no way, currently, to move one book with its specific ID and information out of one account and into another.
This would not be a 'transfer' in the traditional sense — unless you delete the books from the first account, they would still exist there. There is no way, currently, to move one book with its specific ID and information out of one account and into another.
3anglemark
I can add that this is a feature that has been asked for a few times now and then, but the LibraryThing staff has said, no, sorry.
4MoranBooks
Thanks for your replies. I did try the export function and, yes, information was lost. My records often have unique covers and lots of Comments, so this "method" is a deal-breaker. Fortunately, this isn't a must-do for me.
5Keeline
>1 mo1948:, the most complete manner (which is still fairly manual) is unofficial. As described in the Hacking LibraryThing group, you can install a browser plugin for Chrome or Firefox (TamperMonkey or GreaseMonkey) and add a user script called "LT Copy Book" from the GreasyFork website. When configured, this will add buttons to the detail page of any LT listing. It will copy most fields to a new Manual Entry form to add a work. This image may be a bit dated but it illustrates the process:

Not everyone is interested in installing a plugin and a user script. But it is about the only way to move data from one to another or duplicate a record in a single account.
James

Not everyone is interested in installing a plugin and a user script. But it is about the only way to move data from one to another or duplicate a record in a single account.
James