International standard dancing was developed by the British, particularly through the Imperial Society of Teachers of Dancing (ISTD) and the International Dance Teachers' Association (IDTA). While most of the world uses International Style exclusively, both styles are popular in the United States.
This a style that is danced all around the world. This style has very specific syllabus that dancers strive to master. It is danced both socially and competitively. Those that choose to study this style spend a lot of time working on the style and technique which is very strict and somewhat complex. The dances that fall under this style can be broken down into two types:
1) International Standard
