My book will be delivered as an EPUB file. This is the primary reader-friendly software for eBooks. EPUB files are 'reflowable'. This means their content rearranges and realigns automatically to the screen size of your reading device. This avoids the need to zoom, pan and pinch in order to read.

The most POPULAR App you may wish to use is; Google Play Books, and it's FREE An alternative; Adobe Digital Editions (ADE) is a free eReader software that allows you to read and manage ebooks, both online and offline, and is available for PC, Mac, tablets, and mobile devices.