MD Conversation provides online presentations that can be used instead of information pamphlets by doctors and specialists. While this is a subscription service, the introductory presentation on Pelvic Organ Prolapse (POP) is available free online here: An Introduction to Pelvic Organ Prolapse.
This presentation is very detailed, and includes moving diagrams that may help you to understand pelvic anatomy and POP.
The best feature of this presentation is that it clearly states what the goals of POP treatment are, and then compares the available treatments against this list of goals. It also goes into much more detail about lifestyle changes (such as quitting smoking) than most other resources.
The presentation can be paused, and you can review individual sections as many times as you want.
Please note that the Prolapse Information Project is not affiliated with MD Conversation, nor am I necessarily suggesting that you subscribe to this service. I am only directing you towards the free portion of this service.