Crock-Pots were invented by Rival in the 1970's, and have made a come back.
They are slow cookers, ideal for cooking tough foods like beans, and great for one pot cooking that you set up in the morning and which is ready to eat when you come in from work eight hours later.
There are now many slow cookers on the market, but you can tell which ones are the Rival slow cookers as they always have their trademark "Crock-Pot" name. Modern crock-pots are much more high tech than the 1970's versions, and this page features the best crock pots available. I've included some recipe books at the end