Macmillan’s has announced a new ebook club that will give readers one free ebook every month.

This month’s book is The Three-Body Problem by Cixin Liu.

At the start of each month, will offer a new ebook. The catch: you also sign up for Tor’s newsletter. Each ebook is available for seven days, and discussions about the book will take place on

This is a good way to build Tor’s email database. Everyone likes free stuff, and Tor will likely see how the email marketing campaign is working when it decides whether to continue the program. Because the site does say “We reserve the right to end this promotion at any time.”

Of course, this is a nice boon for authors as well as readers.

ThreeBodyThe club gets a book in front of readers who may not have heard about it before – although in Liu’s case, there may have been a number of Tor readers already aware of Liu’s work. A Chinese science fiction writer, Liu has won the Galaxy Award nine times and is a Hugo Award winner.

The Three-Body Problem has nearly 20,000 ratings on Goodreads, but other titles don’t seem as popular in Liu’s stable. Some of the titles have just a couple hundred ratings, small compared to his most popular book.

On Amazon, Problem typically sells for $9.99. So you’re getting a $9.99 value in the first month of the eBook Club, and all for the price of getting another email to your inbox.

Once you sign up, the ebooks are offered in Mobi and ePub format. The deal is only for the U.S. and Canada, and that’s irked a few of the commenters on the blog post.

Publisher’s note: As I discovered firsthand, my just-downloaded  copy of the Liu novel is blessedly DRM free. I’ve caught up only with the ePub, but assume that the Mobi edition is likewise. Big thanks to TOR for not regarding its customers as criminals! In return, please respect the copyright. – DR