The Gunning Fog Index was developed in 1952 by Robert Gunning, a textbook pub
The Gunning Fog Index was developed in 1952 by Robert Gunning, a textbook pub The Gunning Fog Index was developed in 1952 by Robert Gunning, a textbook publisher. Gunning observed that high school graduates were not able to read much of what was written in newspapers and business documents. He determined that the…