Overdrive is a service that lets people check out library items digitally and download them across their devices. Overdrive was a wonderful help section on their website that is a great place to start if you are helping someone who is experiencing issues with the service. That includes everything from signing up, to help downloading materials to specific devices. Like everything else, if you need extra help with it, ask one of our staff and we'd be more than happy to help!
Take a look at Overdrive Help here: http://help.overdrive.com/
Please keep in mind that TRL is currently experiencing issues with some features in Overdrive. Please refer to this document for more information.