Search for "libby" in your device's app store and download the Libby app.
Open the app and follow the prompts.
If this is your first time installing Libby on any of your devices, choose "I'll Search For A Library" or "... guess your library." The app should find Lake Forest Library if you are near the Library. If the app does not automatically find your Library, then select "No" when it asks you if this is your library. Search for "Lake Forest Library" and select it.
On the screen that asks you to sign into Digital Library of Illinois, select "Lake Forest Library" (again). Enter your library card number with no spaces between the numbers. You will then be taken to the Digital Library of Illinois catalog to browse and borrow books.