I enjoyed "Pushed" by Jennifer Block, but it got a little lengthy with the studies constantly cited within the work. My favorites so far are "Birth as an American Rite of Passage" by Robbie E. Davis..brilliant work!! "HypnoBirthing" by Marie F. Morgan, "Baby Catcher" by Peggy Vincent, "The Water Birth Book" by Janet Balaskas, "Gentle Birth Choices" by Barbara Harper
"Spiritual Midwifery" was not my most favorite. The initial stories, which took half the book were good, but trying to read the lingo took it's toll after about 100 pages. Her input as far as tactics and information of birth was great though. I am on an amazon waiting list for her newest book. I have "Birthing from Within" by England Horowitz on my shelf to read as well. I have read more, but those are my favorites. Plenty more to read!
I will need to put the book "birth" on my list. I have a long list, but it continues to get shorter and longer depending on what I find and how fast I read =D