The topic of the book is phase type distributions that have been recognized as an important tool in the quantitative analysis of systems (such as communication networks, logistic networks, manufacturing plants, etc.).

The book provides up-to-date and comprehensive guide to phase type distributions. The complete theoretical background, including definitions and characteristics of phase type distributions, is provided in a way that is accessible to a wide range of readers. Throughout the book, theory is accompanied by detailed application examples that illustrate the practical usage of phase type distributions. The application examples are developed using a software tool, called BuTools, which is freely available for all interested readers.