4.1 Intro to the book club

4.1.1 What is this book about?

  • An introduction seminar to network analysis theory and methods, with focus social networks.

  • The book emphasizes the unity of theory and method in network analysis (check the rich reading list).

4.1.2 Who is the author?

Mark Hoffman, Assistant Professor of Sociology1

  • Hoffman completed his Ph.D. in Sociology at Columbia University and received his B.A. in Social Research and Public Policy from NYU Abu Dhabi.

  • His research lies at the intersection of social network analysis, social history, and computational social science

4.1.3 What makes a “network”?

Social network (Facebook, 2017) connections “shape” our world.2

A network is a catalog of a system’s components often called nodes or vertices and the direct interactions between them, called links or edges. This representation, also known as graph, offers a common language to study systems of different natures and scales.3

(a) the Internet, where routers are connected to each other; (b) Hollywood actor network, where two actors are connec; (c) a protein-protein interaction network. (d) graph representation, consisting of N = 4 nodes and L = 4 links. (from Network Science by Albert-László Barabási)

Network analysis focuses on patterns of relations between nodes.

Examples of network analysis domains:

  • Study the structure of affective links between persons

  • Study flows of commodities between organizations.

  • Find shared members between social movement organizations.

  • Study shared needles between drug users.

What is common across these domains is an emphasis on the structure of relations, which serves to link micro- and macro-level processes.


  1. Pierre explained the meaning of “isolates” which are unlinked nodes.↩︎

  2. facebook cover of Mark Zuckerberg↩︎

  3. http://networksciencebook.com/chapter/2#networks-graphs↩︎