Imagine a long list of boxes Each box contains one number inside But all the boxes are hooked together like a train It's just a way to store a bunch of numbers together, they're extremely extremely useful If you want 5 items You initialize it with DIM myArrayOfNumbers[5] To set the last item in the array to 3.14, type myArrayOfNumbers[4]=3.14 You subtract one from your index, the 5th item is 4