This book constitutesthe proceedings of the 12th International Workshop on Algorithms and Models forthe Web Graph, WAW 2015, held in Eindhoven, The Netherlands, in December 2015.

The 15 fullpapers presented in this volume were carefully reviewed and selected from 24submissions. They are organized in topical sections named: properties of largegraph models, dynamic processes on large graphs, and properties of PageRank onlarge graphs.

This book constitutesthe proceedings of the 12th International Workshop on Algorithms and Models forthe Web Graph, WAW 2015, held in Eindhoven, The Netherlands, in December 2015.

The 15 fullpapers presented in this volume were carefully reviewed and selected from 24submissions. They are organized in topical sections named: properties of largegraph models, dynamic processes on large graphs, and properties of PageRank onlarge graphs.