Here are some small sample downloads of Access databases that illustrate basic techniques. I will be adding to this list as time permits. Not all of these spring from my own diseased mind.
Credit is given where due.
Some files are native Access databases - won't need to be unzipped. These are all very basic techniques - if you're looking for advanced neat stuff you'll have to pay the tab. Click the little blue button to download the file. Click on the blue arrow button or the link to download the file. Inelegant, but it works.