The Bypass Door: This type is usually made of two parts that slide in front/back of each other. It is the most common type of sliding closet doors. Sometimes there are more than two pieces (three, even four), especially if the closets are really big.
Like this creating a bedroom corner. Do you have a studio apartment, which you would like to split into two rooms to create additional private space for different purposes? Perhaps you are a business owner and would like to integrate soundproof partition?