Book excerpt: Child Versus Childmaker investigates a 'person-affecting' approach to ethical choice. A form of consequentialism, this approach is intended to capture the idea that agents ought both do the most good that they can and respect each person as distinct from each other. Focusing on cases in which a conflict of interest arises between 'childmakers'_parents, infertility specialists, embryologists, and others engaged in the task of bringing new people into existence_and the children they aim to create, the author considers what we today owe those who will come into existence tomorrow. Topics addressed include: what the person-affecting intuition is and how it differs from other forms of consequentialism; the consistency of the person-affecting intuition; the non-identity problem; wrongful life; and human cloning and other new reproductive technologies. This book is intended for upper-level undergraduates and graduate students in philosophy, law and economics and for anyone interested in bioethics, population policy, normative theory, children's rights, constitutional privacy, or family law.