If you don't already have a library card, I recommend you get one. Check with your local library about the requirements and what their virtual library offerings entail. A library card can give you access to potentially millions of e-books to download on your Kindle or another e-reader or tablet.
Once you have a library card, you can log in to your library's website with your credentials, then browse the site to see which platform it uses for its virtual catalog. OverDrive is a platform used by many public libraries in the US that features millions of e-books and audiobooks and is available through participating library websites.
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If your library uses OverDrive, then the app to download on your mobile device is Libby. With this service, you can browse the virtual library and borrow books for free.
Hoopla is another service affiliated with many local libraries across the US, but its content catalog features much more than e-books: you can find movies, TV shows, magazines, and music.
