Hypnobabies recommends "Belly Mapping" to learn your baby's position

If you want to know more about Belly Mapping (a way to determine the position of her baby) here is a page with illustrations and explanations.

http://www.spinningbabies.com/baby-positions/belly-mapping

If a mom uses Belly Mapping and finds that her baby is in posterior position, she can encourage her baby to rotate by using some of the tools on the spinning babies website.