I don't have time to comment much on these Wipf & Stock freebies, but just could not _not_ post them, because they are so awesome. Maybe someone else will come along and add some more info.
https://wipfandstock.com/divinations...IGN_2018_02_05.
https://wipfandstock.com/unclean.htm...IGN_2018_02_05.
Very quickly: ignore the price, just add to cart. "ebookfree" should appear in the discount code place. Click on apply coupon. Full price will appear, but you will see where that amount is deducted, so it ends up being free. You might need to do each ebook individually.
They're ePub's.