Firstly, this book covers an important topic. If you look at the study programs universities are offering, it stand clear that more and more of the design study programmes, or programmes where design plays an important role, are situated at the social science or humanities (Arts) faculties. Yet, a some of the teaching is still based on the traditions (classical aesthetics, sociology, communication). And a lot of the methodology is still based on the grand old masters of hermeneutics, phenomenology and survey-based research. I know, because I am one of the professors and have been teaching at multiple universities in programmes like this. Articulating the relationship between social science and design is important.
This book fails in my opinion to deliver. It gets stuck in platitudes and straw-man arguments such as "yes, design and social science are interrelated", "we can learn from each other", etc. The first chapter (on participatory design) is weird in that it does not cite the works that started the movement and it is generally uninteresting. Another chapter (Jordan) is quite good, but it is very weakly connected to the book. I was not impressed - looks like hasty work by most of the authors.
And apart from that, it seems like it is a proceeding of a conference, which the description of Amazon does not state.