Most people buy their ebooks from Google, Apple, and Amazon but there are other retailers out there. One of of which was Microsoft until recently. The company is shuttering the service and this means that people will lose access to the books they’ve brought, a long time problem with digital media.
One of the major downers with digital media is that for much of what we purchase, we don’t actually own it in the same way as we do a physical book or DVD. We’re in essence, paying a one time rental fee for unlimited usage until the company shuts down and our content goes with it.
The good news for the people caught in this shut down, they will receive a refund for their purchase. Their libraries are going bye bye as of July 2019.