Advances in heritable genome editing, such as with CRISPR-Cas9, promise to ensure that some possible future children with genetic disorders are not created — but at what cost to equality? If only certain kinds of people are brought into existence, do we risk undermining the very foundations of social justice? This groundbreaking volume brings together leading philosophical, ethical and legal scholars to explore the implications of selecting future children. Examining this urgent issue through the lens of equality, it challenges us to consider whether genetic selection of children aligns with the core principles of a fair and just society.