It's super-easy to put ebooks from the library on your Kindle. This 4-minute video  tells you how to do it using WiFi. If your Kindle doesn't have Wifi, here's a video on doing it by USB .
Monday-Thursday 9:00 a.m. to 9:00 p.m | Friday 9:00 a.m. to 6:00 p.m.
Saturday 9:00 a.m. to 5:00 p.m. | Sunday noon - 5:00 p.m.