You have all come in contact with a Norman Door, even if you might not have known that’s what it was called. Remember the last time you tried to go through a push door by pulling on it? That’s a Norman Door. The name comes from Donald Norman who, after spending time in the UK, wrote a book called, “The Psychology of Everyday Things“, later changed to, “The Design of Everyday Things“. Doors are a prevalent example: Every building has them, but they are not necessarily put through any stringent tests of user-friendliness; if the hinges are hung straight, and the door swings one way or the other, that’s usually enough to pass. Donald Norman’s point is that if people are using a product the wrong way, it’s not their fault – it’s poorly designed. He popularized the term “user-centred design” – designs based on the needs of the users, whoever and however many they might be. Below are a few examples of failed designs – either inconvenient to use or just downright impossible. Next time you come across an object with poor usability, you’ll at least know what to call it.