A wish list of your preferences for care and intervention during labour, birth and post-natal. Eg who will be there, options for pain relief and other interventions, etc. I think the idea is to consider options ahead of time so you're not making decisions in the heat of the moment when the baby is about to pop out. This is my understanding of it. Having said that, I don't go with any written plan - but my plan is to have a c-section and to have hubby there and to have this baby at 38 weeks!