Waaaay back when, I worked in a high-end wine story. It was owned by a master sommelier (a thing you have to study for and pass a very rigorous test). At the time, he was one of 12 in the entire US.
Anyway, them’re my credentials. On to the basics:
When it comes to buying wines, there’s two main factors: where it comes from, and what grapes its made from.
European wine is most often named after the region it comes from. Thus, you get names like Burgundy, Bordeaux, Champagne, etc. These are each actual regions in the country of France.
They’re each broken down further into sub-regions. Bordeaux encompasses the regions of Margaux, St. Julian, etc.
French wines, regardless of region, are typically made from a variety of grapes (as opposed to new world wines which tend to be predominantly one grape.) Red Burgundies are primarily Pinot Noir, but often are mixed with Gamay or other grapes. Likewise Bordeaux is most often Cabernet Sauvignon and Merlot, but may include Cabernet Franc or others.
On to the new world. It’s much simpler here.
In the US, Australia, New Zealand, and South America, wines are most often named after the grapes they’re made out of. Thus, the big words on the label aren’t the region, they’re the grape. Cabernet Sauvignon, Merlot, Shiraz, Chardonney, those are all grapes.
If you’re in the US, you’ll probably want to start learning with these types of wines. Not only are they typically easier to get your head around, with the current exchange rate they’re much cheaper, and the average US wine shop carries a lot more American wines than any other area of the world.
One really easy way to start learning about wine is once you find a grape you like, buy a few bottles and compare them. This involves opening several bottles at once, but no worries - red wine will last a few days if you cork it back up, or you can invite some friends over.
Pour a glass of the first, and smell it. What do you smell? Try to give it a name. I know that the things people say about wines may be hard to understand at first, but remember this: all you’re looking for is similarities and differences between the wines. If you smell something in one wine that you also smell in another, the important thing is that you recognize that. Putting a name on it just makes it easier.
Next, taste the wine. What does it taste like when it first hits the tongue? How about if you swirl it in your mouth? What does the aftertaste do for you?
Go on to the next wines, and do the same with each. Try to go beyond just “Oh, I like this one, and I don’t like that one.” Describe what you like or dislike. Try to give it a name. Jot down notes if you want.
That enough to get you going?