Based on careful analysis of data from various national surveys...[this book is] the first systematic attempt to disentangle the effects of poverty from family breakdown across a range of problems afflicting children...By using sophisticated statistical techniques to control for such background characteristics as income and race, McLanahan and Sandefur show that, although growing up poor is very damaging to children, single parenthood is in itself severely injurious...The very richness of its analysis makes the book a powerful tool for social policy.