Originally Posted by desertgrandma
Next time, before you purchase the book, download a sample. Plug in your Kindle, and look at the extension. If it says "azw1" or "azw2" its topaz, and RUN!
Or, even faster, download the sample to your computer and check there. Topaz files downloaded to the computer will have the extension .tpz.
The capability of downloading samples to the computer is new in the last week or so.