Mongolian calligraphy is the technique of handwriting in the Classical Mongolian script, which comprises ninety letters connected vertically by continuous strokes to create words. The letters are formed from six main strokes, known as head, tooth, stem, stomach, bow and tail, respectively. Mongolian calligraphy expresses ancient traditional literature, culture, knowledge, intellectual education and innate human sensuality through the brush strokes used in writing the Classical Mongolian script. It requires an equal combination of hand, eye and mental artistry and skill, using brush, ink, paper and strop. This calligraphic art is used for the distinct, vertically written Mongolian script comprising several patterns of writing: ancient, meticulous, stenography, ornamental and stylized. Traditionally, mentors select the best students and train them to be calligraphers over a period of five to eight years.