Here is an excerpt from my astrological signs and careers PDF. Coming out in mid-December to people on my mailing list.
Most people know their Sun Sign AKA horoscope sign because all the person needs to know is their birthdate. However, to gain more profound knowledge of yourself, I feel it is helpful to know your Moon and Ascendant (Rising Sign). To identify the latter two signs, you need to know not only where you were born, but also your time of birth.
For example, My Sun Sign is Taurus, but I find that I often relate more to my Ascendant which is Pisces. So I encourage you to read about your Sun Sign, Moon Sign and your Ascendant.