You can scan the barcode of a physical book using the barcode scanner on the App. This is an easy way to check if a book is available on Perelgo.
Start by downloading the App:
Once downloaded, log in with your web credentials.
Click on the search icon and you'll see the barcode scanner icon on the top right-hand side of the search bar. Clicking on it will open the camera view which will allow you to scan the book's barcode. From there just follow the instructions on the screen.