Western astrology is one of the most well-known styles of astrology in the world, and the most popular in Western countries. It is all based on the historical beliefs of Ptolemy's Tetrabiblos, dating back to the 2nd century. Western astrology is a horoscopic principle that is formed through a divination based on an exact timing, such as a birth date or month of birth, with influences from the cosmos. Modern Western astrology uses twelve zodiac signs, each representing different personality types. Receiving a personal daily horoscope reading can help you become more aware of your surroundings, in addition to helping you better prepare for your future.