This excellent book is a must for anyone interested in the historical roots of the dominant economic school today (noeclassical economics) and how it shares foundations with sociology. This may come as as a surptise for most students of either economics or sociology, but these approaches used to unite in studying the dynamics and mechanisms of society. However, due to fundamental disagreements pertaining on how to study this phenomenon, economics and sociology separated in the 19th century (the methodenstreit) read all about why and how these schools mnow wide apart maybe are reuniting in a neoinstitutional framework. This book is really well-written by one of the really great authorities in social network research: Richard Granovetter. I can only recommend this book which will make you feel much wiser on the social sciences when you are done with it