Logos Bible Software has a lot of packages that include electronic versions of popular print books. However, reading on the computer isn't a lot of fun — certainly not reading a whole book.
But they now have iPhone/iPad and Android apps plus a website that allows you to access a lot of the books you buy, making it possible to read your Libronix books just like a Kindle book.
Rejoice Christian Software is selling the Norman Geisler package for $25. You get 12 titles including Come Let Us Reason, the Baker Encyclopedia of Christian Apologetics, and When Skeptics Ask. I think this package would be a good investment for any Christian.
To get this package for the sale price of $25, you must use this link.
By the way, I am not getting a commission or anything. I just think this is a useful resource for you.