Natural Language Processing (NLP) is experiencing rapid growth as its theories and methods are more and more deployed in a wide range of different fields. In the humanities, the work on corpora is gaining increasing prominence. Within industry, people need NLP for market analysis, web software development to name a few examples. For this reason it is important for many people to have some working knowledge of NLP. The book “Natural Language Processing with Python” by Steven Bird, Ewan Klein and Edward Loper is a recent contribution to cover this demand. It introduces the freely available Natural Language Toolkit (NLTK) 1—a project by the same authors—that was designed with the following goals: simplicity, consistency, extensibility and modularity.