Bliss is a graphical language that has existed in Sweden since the 1970s. Bliss is a language of logical structure and the foundation is a set of graphical elements that combine to form a Bliss word. Bliss words are assembled into a vocabulary that is used in daily communication and/or written communications remotely.
There are currently about 6000 Bliss words. The Bliss language design allows creating new words according to well defined rules for words or concepts that are not yet available. The language has its own grammar, which is expressed graphically by the so-called operators. The grammatical features are important. They give the user an opportunity to express nuances in a sentence with proper grammar and thus be able to communicate with Bliss as in spoken or written Swedish.
Source: Corporate website