Amazon kdp block helps you embed your amazon kdp ebook to anywhere that has the block. So I used it to add my amazon kdp ebook in my footer.
That’s because Amazon makes it easy for ANYONE (not just authors) to generate embeddable links for ANY product on their platform that can be inserted onto ANY web page. Amazon also provides an extensive API for 3rd parties to create plugins and tools to do the same.
Lulu offers neither.
Since we’re talking of a single book, the easiest (and the only practical) approach for you is the first option in my earlier post:
1) Grab the cover image of your book and upload it to your website
2) Find your book in the Lulu Bookstore, and grab the URL of your book. https://www.lulu.com/shop
(If Lulu provides bookstore links in your Lulu account, use that instead as that will likely include some tracking parameters.)
3) Insert the image of your book cover that you uploaded previously [in step 1] into the desired location on your website, and link the image to the Lulu bookstore URL you grabbed earlier [in step 2].
Good luck!