Sold as is.

Condition is not bad for its age, but the outer plastic case some wear & tear (photos show the one indention). The insert postcard has some discoloring, but what do you expect? This thing is from the late 80's.

I did some research on this, but all I can pull up was the Book itself. This is merely a cassette tape that may contain excerpts from the book. I can't see a single cassette tape being able to hold entire reading/audio of the book itself.

Maybe this was a selling tool / marketing item for the book. 

Any questions, contact me. I will answer as best as I can. This is stuff I am finding as I go through Dad's belongings.