"It's all about relationships" in the new Duggar book.
But what exactly can the conservative Christian twentysomethings Jana, Jill, Jessa and Jinger Duggar tell ladies about romantic relationships in Growing Up Duggar when they've never been kissed?
Well, think of their new non-fiction offering as self-help dating book The Rules, but for virtuous women whose dream man turns wine to purified water.
And while the eldest daughters of the Duggar clan are doling out advice rooted in Bible scripture, they also reveal startling tidbits about themselves and their personal lives.
Here are five of the most surprising revelations.