model | Model (person) | America's Next Top Model | Ford Model T | New Model Army | model (person) | Communication | communication | Model United Nations | IPTC Information Interchange Model | London College of Communication | Lockheed Model 10 Electra | Standard Model | Model (profession) | Elite Model Management | Visual Communication | RGB color model | Near field communication | Model Engineering College | Fetish model | Chaos Communication Congress | business model | Beechcraft Model 18 | AJK, Mass Communication Research Centre | Scale model | Nice model | New Model Army (band) | Model Railroader | model (profession) | Lisette Model |
The four-sides model (also known as communication square or four-ears model) is a communication model by Friedemann Schulz von Thun.
By the mid-20th century, according to Crampton (2001) "cartographers as Arthur H. Robinson and others had begun to see the map as primarily a communication tool, and so developed a specific model for map communication, the map communication model (MCM)".