Goodreads is a social networking site for book lovers to recommend and review books. It provides authors with a platform for marketing directly to readers. It is owned by Amazon. Although less popular than it was in the early 2010s, it still retains tens of millions of users.
Goodreads has a dedicated author program; it is mostly free to use, and allows authors to take control of their book(s) profile on the site, and offers the possibility of paid promotions, including the opportunity to give away a free copy of their book (or multiple copies) to a genre-specific audience. We recommend that you only give away a maximum of three books, and be aware of the postage costs for the countries that you include in your promotion. There are reports from US authors who have had to pay huge costs to send books to winners outside the country, along with the hassle of filling in customs forms. What are Goodreads giveaways?
In our experience, we have never seen a Goodreads giveaway have a noticeable impact on the sales of a title. There is also no guarantee that reviews will be forthcoming.