Can the political be reduced to the calculable? Stuart Elden proposes that the answer to this question is no, that this answer has deep implications, and that the question itself calls for an extensive historical and philosophical investigation. Speaking Against Number contributes to this investigation by retracing Heidegger’s inquiries into politics and calculation in a way that squarely faces Heidegger’s political errors while preserving his best insights. Elden follows scholars such as Theodore Kisiel in paying close attention to the development of Heidegger’s thought in its context and to the unfolding nuances of his polyglot vocabulary. Elden’s findings are multidimensional, yet he manages to keep his book relatively readable and concise.