I just saw this thread and it's right up my alley, but I don't think there's anything I can add!

1. Birth Your Way - and I agree anything from Sheila is worth it!
2. Thinking Womans Guide to a Better Birth - Henci Goer - you'll never look at hospitals the same way
3. Spiritual Midwifery - Ina May Gaskin - just so 'psychedelic'
4. Gentle Birth, Gentle Mothering - Sarah Buckley - the hormone articles really appeal to me and have changed how I think about birth in some ways
and I'll add
5. The Birth Partner - Penny Simkin - my DH thinks this is the best book for Dads as it sets everything out in a way that he could understand and wishes he had read it before our first. (Bless x)

C