Well, if you're willing to give it a go. I don't know anything about the format; I was just asking for someone on the Amazon boards. Here's the book they're interested in:
http://eastmanpublishing.com/library...chet_ebook.htm
These "books" come with their own ereader software which installs automatically. A shortcut is created to the book itself, which is an AEH file.
If you want more books, google for EBooksWriter and I think you'll find some.
Edit: Well, there's a sample of Wizard of Oz on
http://ebookswriter.com/ but I couldn't find any other AEH books offhand.
Edit #2: Here's some user-created ones from their webforum:
http://www.paperinik.com/cgi-bin/eng...num=1021548372