World today can be described as interactions of many entities such as humans, animals, smartphones interacting among themselves. Interactions that occur regularly typically correspond to significant, yet often infrequent and hard to detect interaction patterns that are interesting to know in order to understand and predict behaviors of entities. To identify these regular behaviors, the book presents the periodic subgraph mining problem in a dynamic network and an efficient algorithm to solve it. A dynamic network is a temporal sequence of graphs that represents interactions among individuals...