If you use one of Kobo's free reading apps you won't need to worry about download options most of the time. Your Kobo reading app can easily add Kobo Store books to your library for a seamless reading experience.
Download options matter when:
You want to read your book on an eReader other than the Kobo eReader (see here for a list of supported eReaders).
The book you want is only available as an Adobe DRM PDF.
In both of these cases you will need to:
Download a copy of your book to your computer.
Open the book using a free application called Adobe Digital Editions.
You can also use Digital Editions to transfer the book to your eReader. See here for more information on Digital Editions.
You can read this item on your computer using our free Kobo Desktop Application. This application lets you read, manage your library of eBooks, and even shop for new ones. Check out our demo for more information!