1) Go to this page
2) Click on one of the books to go to its feature page
3) If you click on the book's cover you can read a preview; optional. Clearly people who have already read the books will know if they want to share them.
4) Click the "FB SHARE" button! (And while you're at it, the Tweet button and the Like button, and...)
--> Every one of the 7 titles in the contest is trying to collect 50 shares - at 50 shares, the actual ebook becomes available for 100 (and only 100) free downloads.
This means, everyone wins! But once an ebook is open for downloading, you may want to hurry and get your copy - before they are gone.
The first round closes on 1 October - if a book hasn't made 50 shares by then, sorry... no free downloads of that book.
For those who love to write something:
Submit a reader's review of any of the books you've read during the contest (you are of course not limited to one title!).
3 lucky reviewing readers get to win an author-signed paperback copy of the book of their choice.