As a special treat, I am holding a buy one get one sale from December 1, 2020 to December 3, 2020.
So how does it work?
If you purchase one of the following ebooks from any online retailer, you are eligible to get another ebook for the list. Just send me an email at email@example.com with your receipt (make sure it has the date!), and I will email you the ebook of your choice. Don't forget to include what format you want the ebook in: PDF, epub, or mobi.