Our summer reading was the Blessing of a B Minus by Wendy Mogul.  I bought the book from Google books  for $10.99 in what I thought was the .epub format for use on my iPad, however when I got it it was in the .acsm format.  This is used by Adobe Digital Editions to send the activation ID to the delivery server which will use that ID to generate an encrypted PDF or ePUB eBook, which is then downloaded to your PC.  In short…I was able to open the book, but only via the Google Book reader.  So this is what I had to do…

I downloaded the free Adobe Digital Editions software and opened my digital purchase there.  I was then able to download the actual .epub format (it was stored in the folder ‘My Digital Editions” within “My Documents”) and import it into Calibre, my book server.  From Calibre it was an easy task to download my new book right to my iPad wirelessly.