I read this piece for my MA thesis, and it undeniably contributed to it a lot. It is challenging to review this book, although I respect what Braidotti created, I also want to say a few things about this.
First of all, before reading this piece, I highly recommend that you check on the posthuman theories that are related to the interconnection, relationally and coexistence of human, animal, ecology, and machine. This is Braidotti's core argument, and to grasp the idea, basically, you can start from Francesca Ferrando's YouTube lectures on "the posthuman". Plus, you need to have a basic knowledge of the postmodern theories / theoritsts (of Foucault and Derrida - I would also add postmodernism itself because, I think, it is best to know that posthumanism emerged out of postmodernism, especially due to the way the current ways of thinking about the human is challenged). After that, read some Donna Haraway (Cyborg Manifesto, and Companion Species) and finally N. Katherine Hayles (How We Became Posthuman) on the idea of informatics and how human is seen as 'information'. Then, it would be easy to grasp the argument of Braidotti because she builds up on all of these.
Looking at the first three chapters, I really think this is a perfect book! "Introduction" clearly outlines what the posthuman is, chapter one, "Post-Humanism: Life beyond the Self", perfectly shows how the image of man is transformed, through the criticism of Eurocentred / Western humanism over the figure of Da Vinci's Vitruvian man. Chapter three, "Post-Anthropocentrism: Life beyond the Species" is a very important chapter where she focuses on the boundaries between human and human-other (animals, earth, and the machine) as she says:
"My focus is on the productive aspects of the posthuman predicament and the extent to which it opens up perspectives for affirmative transformations of both the structures of subjectivity and the production of theory and knowledge. I have labelled these processes as ‘becoming-animal, becoming-earth and becoming-machine" (Braidotti 66)
She mentions Dolly the Sheep as a posthuman figure and engages in critical discussion within the framework of animal testing. (there are also beautiful images embedded. -S. Harris, Leonardo Da Vinci’s Dog and Maggie Stiefv) She also mentions how The Vitruvian Man has gone cybernetic" (Braidotti 90) while discussing the role of technology in the posthuman predicament by including an image called 'Robot in the style of Leonardo’s Vitruvian Man' by Victor Habbick. For the human and nonhuman dualism, her argument is based on bios /zoe; the former refers to humans and the latter refers to non-humans. As a result, she offers a zoe-egalitarianism where human and nonhuman exist equally.
However, although these three chapters (including the introduction) are written and discussed perfectly well, the other three chapters are way too complex and do not make any sense. Chapter three, "The Inhuman: Life beyond Death," and chapter four, "Posthuman Humanities: Life beyond Theory," look at 'the ways of dying(?)' and how posthumanism found a place in the humanities. Braidotti suddenly becomes a postmodern theorist with the inclusion of these complex chapters, which I think was not necessary at all, as the first three chapters were well enough. Even worse, the conclusion does not contribute to anything at all and, of course she cites millons of pieces (including her own earlier studies) and add things to that statements, which is okay I guess because this books is more like 'engaging' with the issues.
Still, I enjoyed reading The Posthuman, although at times I found it impossible to finish and unbearable to read. I really think that the first three chapters carry what posthumanism has argued so far further and offer countless points that can contribute to a number of fields. Her main argument is the entanglements between the human and nonhuman, and what she offers is a flat ontology where humans, animals, and machines live in harmony (which Ferrandı calls a harmonic legacy); so interconnection, relationality, and coexistence (look at Francesca Ferrando's YouTube lecture on 'postdualism'). Overall, Braidotti's work is related to the humanities, eco-criticism, and technology in the posthuman framework. I believe it is a foundational text and worth the challenging reading.