Well, HarperCollins is catching on, a bit, and is offering such a deal on Heart-Shaped Box by Locke & Key writer Joe Hill.
Videos by ComicBook.com
Hill asked fans to retweet a message he put out there with the details, which you can see below courtesy the website linked above. The app needed to get your free copy can be downloaded here (Android or iPhone).
How to Claim Your eBook of Heart-Shaped Box
Available September 1st!
Claiming your eBook is as easy as 1-2-3!
1. Download the BitLit app (Android or iPhone).
2. Use the app to snap a photo of your print copy of Heart-Shaped Box.
3. Write your name on the copyright page. Use the app to snap a photo of it.
From there, we’ll send you an email with your coupon code to get the eBook edition of Heart-Shaped Box for FREE from HarperCollins.