Buy yourself a Carters book. That's how I learned about them. They come out every year and are a bit expensive but they are the best way to learn about all Australian antiques and collectables. It has heaps and heaps and colour photos and gives the prices of things. The items are from Australian antique shops so it gives you a good idea of the value. Very handy if you go to garage sales and need to know what things are worth. Most good book shops should have them. Or you can buy a second hand one on ebay. Just search for "carters antiques book" and they'll come up. There are some pocket sized ones, but you need the big ones if you are going to learn. Best to buy one that's not too old.