Tibetan literature generally refers to literature written in the Tibetan language or arising out of Tibetan culture. Historically, Tibetan has served as a trans-regional literary language that has been used, at different times, from Tibet to Mongolia, Russia, and present-day Bhutan, Nepal, India, and Pakistan. Today, the term Tibetan literature can also be applied to any work by an ethnic Tibetan person or arising out of Tibetan folk culture; contemporary Tibetan writers sometimes use Chinese, English, or other languages to compose their work.
Today, the term "Tibetan literature" can also be applied to any work by an ethnic Tibetan person. However, who is a "Tibetan" and who speaks "the Tibetan language" are contested. For instance, Chinese ethnologists have argued that the Baima language is independent from Tibetan, however, the state classifies them as Tibetans for fear of being seen as attacking the unity of Tibetan identity. Similarly, the Tibetan languages are in fact mutually unintelligible, which has created difficulty in education, where Chinese authorities impose for example Lhasa Tibetan on Amdo Tibetan speakers, because they are both considered part of the same language for political reasons. Contemporary Tibetan writers sometimes use Chinese, English, or other languages to compose their work.
The Tibetan script was developed from an Indic script in the 7th century during the Tibetan Imperial period. Literature in the Tibetan language received its first impetus in the 8th century with the establishment of the monastic university Samye for the purpose of the translation of the voluminous Buddhist texts from Sanskrit into the vernacular. The Tibetan absorption of Buddhist thought allowed for the penetration of Chinese as well as Indian styles, through representations of the Arhat. In their final form, established in the 14th and 17th centuries respectively, these texts comprise the 108-volume Kangyur, and its 224-volume commentary, the Tengyur. Because of the destruction of the monastic universities of India by the Mughals, the Tibetan versions of some works are the only extant ones. Around 950, a secret library was created in the Mogao Caves near the oasis of Dunhuang to protect Buddhist scriptures, and it is by this means that we possess many of the oldest versions of some Tibetan, Chinese and Uighur texts.