A Thangka is a traditional Tibetan Buddhist painting that usually depicts a Buddhist Deity (Buddha or Bodhisattva), a scene, or a mandala. These paintings are considered important paraphernalia in Buddhist rituals. They are used to teach the life of the Buddha, various lamas, and Bodhisattvas to the monastic students, and are also useful in visualizing the deity while meditating. One of the most important subjects of thangkas is the Bhavacakra (the wheel of life) which depicts the Art of Enlightenment. It is believed that Thangka paintings were developed over the centuries from the murals, of which only a few can be seen in the Ajanta caves in India and the Mogao caves in Gansu Province, Tibet. Thangkas are painted on cotton or silk applique and are usually small in size. The artist of these paintings is highly trained and has a proper understanding of Buddhist philosophy, knowledge, and background to create a realistic and bona fide painting.

Thangka paintings are generally kept unrolled when not on display on the wall. They also come with a frame, a silken cover in front, and a textile backing to protect the painting from getting damaged. Because Thangkas are delicate in nature, they are recommended to be kept in places with no excess moisture and where there is not much exposure to sunlight. This makes them last a long time without their colors fading away. Painting a thangka is an elaborate and complex process and requires excellent skills. A skilled artist can take up to 6 months to complete a detailed thangka painting. In earlier times, thangka painters were lamas that spent many years on Buddhist studies before they painted.