leeneia, your local library may have books you can read on Kindle or other reading devices. Check your library's Website. I travel with my Kindle Fire all the time, and really like it. I download a lot of documents, magazines, and whatnot in PDF format, and they work well on my Kindle. Can't say I've bought many books in Kindle format because so much is available for free.
I did get a nice desert wildflower guide, though.

-Joe-