Although not the first writing system for sign languages (see Stokoe notation), SignWriting is the first to adequately represent facial expressions and shifts in posture, and to accommodate representation of series of signs longer than compound words and short phrases. It is the only system in regular use, used for example to publish college newsletters in American Sign Language, and has been used for captioning of YouTube videos. Sutton notes that SignWriting has been used or investigated in over 40 countries on every inhabited continent.[1] However, it is not clear how widespread its use is in each country.