In an era when teachers commonly report that up to half of the children in their classes come from multiple homes and have multiple caretakers, the special psychological challenges of stepparenting have never been in greater need of examination. As thoughtful clinicians have long known, stepparenting is among the most complicated of psychological projects: it may simultaneously be a multifaceted burden and a spur to personal autonomy, deepened sensitivity to others, and newfound competence as a nurturer. Among the thousands of divorced people who remarry each year, most - despite their...