Horoscopes are astrological charts depicting the positions of the sun, moon, and planets in relation to the signs of the zodiac at a specific times. It analyzes the character of the person born at that time and provides information about current state of their life and their future.
The above question is quite subjective as some people blindly believe in horoscopes while others are far more rational. For some they work and others they do not. Horoscopes in general can only guide a person towards his favorable or unfavorable phases of life but most of the time it fails to be specific.