A lot of ink is spilled discussing the myriad of experiences of parenthood - but what of non-parenthood? Those who remain childless? Mantel has brought together a huge number of female writers without children to discuss (and often comically riff on) their childless state. You'll recognize many famous names, but lesser-known authors also have valuable contributions.
I thought the book was a bit too long (250 pages), as I found about two-thirds of the way through that I had stopped hearing anything new - that writers were just repeating what another had said previously.
But I found a lot to relate with, also. Some are childless 100% by choice, others simply didn't have kids by chance, bad timing or lack of opportunity. A few have regrets, but there's really a commendably wide variety of experiences and emotions expressed here.