"The Thinking Woman's Guide to a Better Birth" by Henci Goer
"The Birth Book" by Dr. Sears
"The Pregnancy Book" by Martha Sears
"Gentle Birth, Gentle Mothering" by Sarah J Buckley
"Birth Your Way" by Sheila Kitzinger
"Trust Your Body! Trust Your Baby!" by Andrea Frank Henkart
"Birthing From Within" by Pam England and Rob Horowitz
"Having a Baby Naturally" by Peggy O'Mara
"Pregnancy, Childbirth and the Newborn: The Complete Guide" by Penny Simkin
"Homebirth" by Sheila Kitzinger (if you might be interested in that)
"A Good Birth, A Safe Birth" by Diana Korte
"Childbirth without Fear: The Principles and Practice of Natural Childbirth" by Michael Odent
"Gentle Birth Choices" by Barbara Harper
"The Birth Partner" by Penny Simkin
NOT a book, but still helpful further down the road,
www.spinningbabies.com and
www.blueribbonbaby.org
As part of the healing process from a traumatic birth experience with my ds I became a little bit of a birth junky and literally read just about every birth book I could get my hands on. If you only read ONE of the books I gave...my suggestion is "The Thinking Woman's Guide to a Better Birth" by Henci Goer.
I tend to follow Marsden Wagner's guidelines for choosing pregnancy/birth books. If it ever says something along the lines of "if this happens or if you have a question...ask your doctor" put the book down and find another!