What you'll also learn is that a lot of what we think of as "front" labels on wine are actually the "back" labels - the government requires that the front label contain all the information about the product, so the pretty one we all think of as the "front" label is either not technically a label at all or just the back on (in most cases).
You might also enjoy using the system to figure out who really makes what: Kirkland brand beer, for example, is sometimes actually Gordon Biersch; the COLA application for Kirkland Hefeweizen is all that you need to tell you that. Fun!
Hat tip: Lehrman Beverage Law's beverage law blog, which is a fascinating read.