Though you might be surprised, I’ve been reading Feminine Appeal by Carolyn Mahaney.  It is truly an excellent book on the character of a godly woman, focused on the seven character qualities revealed in Titus 2.  It ranks right up there with The Excellent Wife by Martha Peace.  It is written with humility, candor, humor and is filled with guidance from Scripture.  This is also a great book to go through alongside another woman and is a prettty easy read at the same time.   Oh, I should also mention that Carolyn Mahaney (and her three daughters) also have a blog entitled Girl Talk.

For younger, unmarried women and for mothers with daughters, it remains difficult to find books appropriate for women who are not yet married.  Feminine Appeal is written with sensitivity to the unmarried, but is still geared towards the married.  Probably the best book out that I know of for single women is Did I Kiss Marriage Goodbye? by Carolyn McCulley.  The book is a challenge to women to view their singleness as a gift from God, rather than as a burden, punishment or trial.  McCulley makes her case from Scripture and speaks from personal experience (McCulley, an feminist pre-Christ, is in her early 40s, still single and running a great blog entitled Solo Femininity.)

One final resource to mention is the Modesty Heart Check (pdf) by Sovereign Grace Ministries.  It’s also found within the book, Girl Talk, by Carolyn Mahaney & Nicole Whitacre.  A corresponding message by CJ Mahaney entitled "The Soul of Modesty" can be also be heard/read in audio ($6) or article (free, but abbreviated) form.