How many types of emulsions are there? Which are they?

(N/A) Emulsions are primarily classified into $2$ types based on the nature of the dispersed phase and the dispersion medium:
$1$. Oil in Water $(O/W)$ type: In this type,oil is the dispersed phase and water is the dispersion medium. Example: Milk,vanishing cream.
$2$. Water in Oil $(W/O)$ type: In this type,water is the dispersed phase and oil is the dispersion medium. Example: Butter,cold cream.