Adorno is one of those famously difficult German philosophers, who also gave reasons for why his prose needed to be so difficult. But Brian O'Connor (University College Dublin) is remarkably lucid in his exposition, both of why Adorno claims the need to write as he does and about the substance of Adorno's thought. Having struggled with Adorno, both on my own and in the classroom, I found this book eye-opening. It is undoubtedly the single best treatment of Adorno's thought to date, and I hope it will lead to a wider interest in Adorno among philosophers.