The San Antonio Public Library has a terrific collection of eBooks, eAudio and eReadalongs developed just for kids. You can search for eBooks via the library catalog or you can browse this collection through the Kids eReading Room.
When you are ready to read, listen or view -- the best plan is to download Overdrive's Libby App onto your device. (Just visit your favorite app store and type in Libby.) The app is free and really easy to use. The good news is that eBooks never accrue fines. At the end of the three week check-out period -- eBooks are automatically returned. No worries!
And, an eBook on your device means you'll never be without something to read. What could be better?