Between facts and norms Book

I have to be completely honest: I did not finish this book. Nor am I planning on finishing it. Therefore, I'll have to base my review on my reading of the first three chapters, which I must've read four or five times when I studied this book during the course of the previous academic year.

Mr Habermas's philosophical ideas are incredibly complex and nuanced, and I really respect him for that. He manages to formulate a theory of the legitimation of law that respects both its facticity and its validity. Unfortunately, in my reading of this book, I underestimated how much pre-existing knowledge of Habermas's previous philosophical works (especially A Theory of Communicative Action) is necessary in order to sufficiently grasp his ideas. Add the fact that the book is translated from the German and that Habermas also uses his own particular terminology, which results in my assessment that this book is a very difficult, though not entirely unrewarding, read.