Anyone thinking about taking this course should be aware that Bruno Latour is not, and has never been, a scientist. He is in the same camp as Derrida, Lacan and Foucault, in that he has a great deal to say about science but very little experience of it.

He is the creator of 'Actor-Network Theory'. I summarize the introductory paragraphs from Wikipedia, to give you a flavor.

  Actor–network theory is an approach to social theory and
  research, originating in the field of science studies, which treats
  objects as part of social networks. It can technically be described
  as a "material-semiotic" method. This means that it maps relations
  that are simultaneously material (between things) and semiotic 
  (between concepts). It assumes that many relations are both 
  material and semiotic.

  Broadly speaking, ANT is a constructivist approach in that it 
  avoids essentialist explanations of events or innovations (e.g. 
  explaining a successful theory by understanding the combinations 
  and interactions of elements that make it successful, rather than 
  saying it is “true” and the others are “false”). However, it is 
  distinguished from many other STS and sociological network theories 
  for its distinct material-semiotic approach.