You, as the creator, are both the copyright holder and publisher of all works created and distributed using the tools and services available on theLulu.comwebsite. Therefore, when creating your work's copyright page, you should list yourself as the copyright holder and publisher. If you wish, you may list Lulu as the distributor.
If you choose to use a free Lulu ISBN, Lulu will register the pertinent information about your book with bibliographic services.
Lulu does not register ISBNs with the United States of America Library of Congress or any other country-specific copyright office.
If you choose to use your own ISBN, purchased from either Lulu or another provider, you must enter the bibliographic information (title, author, format, publisher, etc.) required to associate the ISBN with your book. As a best practice, you should list the same information on your copyright page that was used to register your ISBN.