Can you recommend any books to help me learn more about Astrology?

I recommend "Linda Goodman's Sun Signs" by Linda Goodman (Bantam, 1984) for an entertaining introduction to the zodiac signs. You might want to look at Steven Forrest's "The Inner Sky" (Seven Paws, 2007) as another introductory text. Some people also recommend "Astrology for Yourself: How to Understand and Interpret Your Own Birth Chart" by Douglas Bloch and Demetra George (Ibis Press, 2006.) Isabel Hickey's book "Astrology: A Cosmic Science" (CRCS Publications, 2992) is still a fascinating wealth of information.

My true recommendation, however, is this: read everything about astrology that you find the least bit interesting -- from monthly horoscopes on the web, to full-fledged textbooks on special topics to the charts of your family and friends. Every astrologer has a piece of the puzzle that is this fascinating topic. Seek out diverse sources of information; there are many many more wonderful writers on astrology than I could possibly list here. Don't feel you have to limit yourself to one point of view or system for understanding astrology. Have fun!