Everyone uses photogrammetry! Reading this information is a simple use of photogrammetry because you are recording this information with your eyes. Driving your car and determining when to stop is another application of photogrammetry because you are measuring distances with your eyes. Everyday people are recording, measuring and analyzing data if they realize it or not!
Surveyors can record and accurately measure physical objects this same way with the help of photogrammetric technology such as expensive cameras, laser scanners (LiDAR) , and GPS (Global Possitioning Systems) . They can use these technologies practically anywhere, on the ground (terrestrially), in the water (hydrographically), or in the air (aerially). Aerial photogrammetry is the most popular method because most clients order large scale maps of land.