In spirit of the first CCEGN workshop, the second interdisciplinary workshop "Critical and Collective Phenomena in Graphs and Networks" (CCEGN 2017), continues to explore recent advances at the interface between statistical physics and mathematics of random graphs and other random discrete structures, and their applications to network science and other disciplines, bringing together top researchers in these cross-fertilizing fields. The specific topics covered at the workshop this year include:

- Random geometric graphs, maximum entropy graph ensembles, their limits (graphons), and their applications to spreading phenomena and other dynamical process on networks.
- Random discrete structures in quantum gravity.
- Metric structure (distance distributions) in random graphs.
- Random graphs with quenched disorder, microcanonical and canonical ensembles of random graphs.
- Phase transitions and Anderson localization in random graphs.
- Random matrix models and their spectral statistics.
- Statistical inference in real networks using random graph models.

**Keynote speakers:**

Zdzislaw Burda - AGH University of Science and Technology, Poland

Vladimir Kravtsov - Abdus Salam International Centre for Theoretical Physics (ICTP), Italy

Dmitriy Novikov - Institute of Control Science of Russian Academy of Science, Moscow, Russia

Charles Radin - University of Texas, USA

Sidney Redner - Santa Fe Institute, USA

M. Ángeles Serrano - Universitat de Barcelona, Spain

**Invited speakers:**

Leonid Chekhov - Steklov Mathematical Institute, Russia

Diego Garlaschelli - Instituut-Lorentz, the Netherlands

Sergio Gómez - Universitat Rovira i Virgili, Spain

Andrei Leonidov - Moscow Institute of Physics and Technology, Dolgoprudny, Russia

Gabor Lippner - Northeastern University, USA

Sergei Maslov - University of Illinois, USA

Piet Van Mieghem - Technical University of Delft, Netherlands

Tobias Muller - University of Utrecht, Netherlands

Ivan Oseledets - Skoltech Center for Computational and Data-Intensive Science and Engineering, Russia

Lyudmila Ostroumova - Yandex and Moscow State University, Moscow, Russia

Romualdo Pastor-Satorras - Universitat Politècnica de Catalunya, Spain

Tiago Peixoto - University of Bath, UK, and ISI Foundation, Italy

Vincent Rivasseau - University Paris-Sud, Orsay, France

David Saad - Aston University, Birmingham, UK

Michael Shapiro - Michigan State University, USA

Mikhail Skvortsov - Skolkovo Institute of Science and Technology, Russia

Konstantin Tikhonov - Landau Institute for Theoretical Physics, Russia

Carlo Trugenberger - InfoCodex AG, Semantic Technologies, Switzerland