Scientific advances in genetics, neuroscience, and artificial intelligence signal the end of our traditional concept of the human being. The most vigorous movements dealing with this ongoing crisis of humanism are posthumanism and transhumanism. While posthumanism reconsiders what it means to be human, transhumanism actively promotes human enhancement. Both approaches address the posthuman condition in the technological age. In 20 articles, written by leading scholars of the field, this volume provides the first comprehensive introduction to debates beyond humanism.