This book covers the most important aspects of the web using modern mathematical and probabilistic treatment. It focuses on the information and application layers, as well as some of the emerging properties of the Internet and looks at new topics such as web graphics and highlights recent work from experts in the field of networks such as Kleinberg, Leskovec, Faloutsos and Newman. Provides new material on link analysis, LDA and non parametric Bayesian methods and features a new section on topic modelling applied to large-scale software data.