Powell's has an eBook version of the Acrobat 5 Master Class book. This is extremely curious since we were not informed about it's publication, consulted on it's creation, or notified about a contract amendment. Our book was not designed for Acrobat eBook Reader or for eBook publication of any kind, so buyer beware! If they have simply converted our files to a PDF and attached DRM (digital rights management) to it, readers will not likely have a good electronic reading experience. I am trying to find out more - our publisher has not yet responded to our inquiry. I'll call California this afternoon...