Get the "Be" series bundle on Paul's letters, for only
$1.99,
at Amazon. There are 9 books in the series, making each one only
22 cents each!
You occasionally see a free ebook in the "Be" series; a little bit more often you'll see a 99-cent one. But to find this many of these books by Warren Wiersbe for
22 cents each is fantastic!
Is $1.99 still a little bit too expensive for you? Well, you can get the bundle
at Christianbook for
$1.59, which works out to
18 cents for each book. Want to get the bundle even cheaper? Sorry, I can't help you there.
I think that I already have all of the volumes in this bundle (my Wiersbe "Be" series ebooks are scattered among various places: Amazon, Christianbook, maybe B&N and others), but I'm not sure. So I'm springing for this set at Christianbook. They're all DRM Free there, so I can convert them into whatever format that I want them.
ADDENDUM: I found out that I had already bought the set from Christianbook.

The bundle must have been outrageously cheap sometime before now. I'm going to have to miss out on grabbing this insanely cheap deal now. I'm so sad.