Through the precise, technical language required to explore how we speak about robots, the book lets the beauty of inspiration and the researchers enthusiasm shine through. It evokes the feeling of listening to the late Jean-Paul Laumond reflect in mathematical terms on his own robotics researchdeeply rigorous, yet quietly elegant. * Antonio Bicchi, Professor of Robotics, University of Pisa, Italy * What rhetoric does to robotics: turning fear into wonder. Or how to reenchant movement. A brilliant demonstration. * Emmanuelle Danblon, Professor or Communication, Université Libre de Bruxelles, Belgium *