Bestselling author Seth Godin has decided to end the Domino Project, his experimental imprint with Amazon. The books will still be sold on Amazon, but Sarah Kay‘s poetry book B will be the last book published by the imprint.

Last August, Godin made a surprise announcement: “I’ve decided not to publish any more books in the traditional way.” He then launched the Domino Project through Amazon, publishing 12 books. The list included Do the Work: Overcome Resistance and Get Out of Your Own Way by  Steven Pressfield. General Electric sponsored a free download of that “sponsored book.”

Godin explained why he is stopping in a blog post: “By most of the measures I set out at the beginning, the project has been a success. So why stop? Mostly because it was a project, not a lifelong commitment to being a publisher of books. Projects are fun to start, but part of the deal is that they don’t last forever. The goal was to explore what could be done in a fast-changing environment.” (Via Publishers Lunch)

Editor’s Note: The original version of this post misstated the title of the project’s final book.