Some of Warren Wiersbe's helpful commentaries are on sale again.
There are a handful of the highly-regarded "Be" series, all priced at
99 cents at Amazon at least. There are also three of Wiersbe's "Bible Study Series" on sale for
99 cents, too. The one on Jeremiah is
free through tomorrow, August 22.
In lieu of listing all of the selection, I suggest that you visit
GospelEbooks.net (notice that it is a ".net" and not a ".com") and scroll down until you see the post about the books. At the moment, the post is about halfway down the screen (Note: As more things get posted on
the site, that post will get "pushed" down).
I'm sure that all of the above selection are available from the usual suspects, too: Christianbook.com, Google Play, Kobo,
et al. If you're a real penny-pincher,
ChristianBook.com frequently has the "Be Series" books on sale for
79 cents each, as ePubs, and they
may be DRM-Free, if memory serves me correctly.
I have acquired all of the "Be" series, most in two formats (the one, other than Kindle's mobi, is ePub) now. I'd like to have all of Wiersbe's "Bible Study Series" in two formats, too, but they are accumulating much more slowly for me than the "Be" series did.