I'm not a big fan of recommending books to a large group of different people. Reading a book takes time and there's nothing worse then starting a book and waiting for it to be relevant or interesting to you. However, I have to recommend this one because I've honestly found it relevant and interesting in every stage of my life thus far. I read it when I was in high school and have referenced it MANY times since then. I recently pulled it off the shelf for a little refresher.
For ANY young woman (or mama of a young woman or potential mama of a young woman), this is for you. We live in a sex-crazed, superficial world and, although we might think we are coping, we are constantly being inundated by the media, celebrities, and even our peers. It's everywhere! This book called Every Young Woman's Battle (link takes you to Amazon for reviews and summary) will show you how to take a sex-saturated world and overcome it with Gospel-mindedness. It hits on some major points that we women face all the time.
It also answers the question, "How far is too far?" when it comes to sustaining virginity and purity. I can't tell you how many times I've been asked that question...and the age of the asker keeps dropping! Whether you are struggling with body image, relationship temptation, past sexual sin, or just want some motivation to live a pure and glorifying life, I highly recommend this book.