Wipf and Stock is offering a free eBook copy of I Will Tell You the Mystery: A Commentary for Preaching from the Book of Revelation by Ronald J. Allen. I did not see an expiration date so you might want to act sooner rather than later. Here are the instructions to get your copy.
1. Click on this link.
2. Click "BUY" on the eBook option.
3. Click "Add Coupon" and use the code "FREEALLEN"
4. Upon checkout completion, you will receive a confirmation email with instructions of how to download your free eBook.