The three main zodiac signs are Aries, Taurus and Gemini. Aries is the first sign of the zodiac and is associated with energy, enthusiasm and passion. It's symbolized by a ram and its element is fire. Taurus is the second sign of the zodiac and it's associated with stability, security and reliability. Its symbol is a bull and its element is earth. Lastly, Gemini is the third sign of the zodiac which represents communication, adaptability and versatility. Its symbol is two twins connected at their heads while its element is air.