For everything you could want to know about Kobo readers and eBooks, click on the green Kobo block to the right.
Here are some short-cuts:
To set up your Kobo account, click here. Once your account is set up, you will be able to purchase and load eBooks to a variety of devices.
To browse all eBooks available, click on the "Browse eBooks" link under the green Kobo box on the right.