Libra is an air sign. In Western tropical astrology, there are 12 astrological signs, and each of the four elements is associated with three signs of the Zodiac. The air signs are Gemini, Libra, and Aquarius. Air signs are intellectual and communicative, experts in the ephemeral, and the things of this world that lack physical form, especially true of language and information. Libra is a cardinal air sign, represented by the scales, an association that reflects Libras fixation on establishing equilibrium. Libra is obsessed with symmetry and strives to create equilibrium in all areas of life, especially when it comes to matters of the heart.