For those who are a little more interested in Vedic Astrology, some recommended reading material:
Komilla Sutton: The Essentials of Vedic Astrology
Great introduction to Vedic Astrology. This book is recommended for beginners, although advanced students can also find much wisdom in it.
James Braha: Ancient Hindu Astrologer for the Modern Western Astrologer
I highly recommend the book It is a great book Ancient Hindu Astrology for the Modern Western Astrologer by James Braha This book is a great introduction into Vedic Astrology, contains interpretations of several charts and sample interpretations. It is a must read especially for beginners.
James Braha: The Art and Practise of Ancient Hindu Astrology
Another one by James Braha - who discusses many controversial issues in Vedic Astrology in an intimate setting and a clear way. This book is fun to read and you can learn a lot from it. Especially recommended for those that have some basic knowledge of Vedic Astrology. If not, you can first read Ancient Hindu Astrology by James Braha and this book next.
Dennis Harness: The Nakshatras
The best book about Nakshatras, the Moon Mansions of Vedic Astrology. It gives insight in the myths surrounding the Nakshatras and how to use them in a chart interpretation.
This book can be red by beginners, but is especially useful for people who already have some knowledge about Vedic Astrology.