Care is a broad subject, and not easy to pin down to one idea. María Puig de la Bellacasa approaches it from a study of ethics and philosophy. The first section sets out the possibilities for care across different types of human and more-than-human actors, including inorganic technologies. It is dense reading, and not easy to recommend for that reason, but it is also carefully written, with each word chosen for its accuracy and no term used lightly.

The second half of the book presents a possible real-world praxis for the theoretical framework in the first. Puig de la Bellacasa uses her own experiences learning from a permaculture retreat to begin an argument about how care of soil is a critical and central example of a system that requires care. Drawing from science, philosophy, experience and culture, she uses soil to show how complex webs of interconnected actors need to care for one another to maintain healthy soil for present and future generations.

The theoretical framework in this book is one that anyone with an interest in networks and assemblages would find fascinating.