OverDrive, Inc. has been working with libraries since 2002, when it launched Digital Libary Reserve, to provide a download platform for library patrons.
According to their website OverDrive is currently being used by over 50,000 libraries in 78 countries. Libraries sign up for OverDrive individually, or as members of a consortium of libraries. The local library in my small town, for example, is part of the Great Lake Digital Libraries group. Being a member of a group allows a smaller library to pool it's resources to be able to offer a larger selection of ebooks and audiobooks through OverDrive.
OverDrive offers an OverDrive app, and an OverDrive website through which you can borrow books, as well as the Libby app, which is more specifically geared for portable devices like phones or tablets.
OverDrive's Libby app is an easy to use, convenient way to access your library's collection and choose reading materials to download to your device. Libby is available through Google Play, the Apple App Store and the Microsoft Store on Windows 10.
Using Libby, audiobooks that you check out from your library will download directly to your device. For ebooks, you have the option of downloading to your device or to your Kindle. If you have multiple devices - a phone and a tablet for example - you can install Libby on each device and your library check outs will be available to download on any of your devices with the Libby app.
The Libby app is pretty straightforward to use. Once you've downloaded the app to your device your first step will be to provide Libby with your library card, and then you'll be ready to check out your first book.
Keep in mind that Libby is giving you access to your local library (or group of libraries), and through Libby you are gaining access to the ebooks and audiobooks available from that specific library or libraries. Libby will show you a selection from your library on the main screen, but you can sort, filter and search through the whole collection to find a book you would like to read. The user interface is intuitive and easy to use, so getting to the type of books you like to read (say non-fiction audiobooks including only biographies and histories, and that are available for check out right now) is pretty quick. Once you find a book you like, check it out and start reading (or listening)! The book will be downloaded to your device so you can access it even if you're not connected to the internet.
Speaking of books being available for check out - just like when you go to your library in person, not every book you want to read will be on the library's shelves. Even if the library has the book, someone else may have checked it out already.
If the book you want is checked out, the good news is that you can still place the book on hold. Libby will then notify you when the book is available for you to check out. If it's a new or popular book you may end up being fourth or fifth in the on hold queue. In that case, Libby will let you know when the book should be available, based on the number of people in line ahead of you, and the length of time allowed by your library to borrow the book. If you decide to place a book on hold, Libby will notify you when it's ready for check out.
There are several videos out there that can help you get started with Libby and explain more about how the Libby app and the borrowing process works. Your library may have a video of their own that you can reference, or your librarian may be able to point you to resources to help you get started. Barring that, a few videos that I think do a good job of explaining how to get going with Libby are listed below. Just keep in mind that in these videos some of the details, like the checkout times for ebooks or audiobooks, may be specific to the library that produced the video.