This book constitutes a continuation of Bruno Latour's concerns and themes and builds on his earlier theories. He suggests in this book that science and technology need not be an enterprise that is unrelated to general society. He feels that such as idea, assumed to be common sensical is not actually so and using his earlier theories, he proves that there is a need to look beyond such common sensical assumptions of the gap between society and science. In the process of this, he presents a conceptual context for political ecology and building on the experiences of sciences as they are actually practiced, he suggests that what is needed is the constitution of a collective of humans and non-humans.