Regular expressions are a very powerful tool to extract information from text. Basically, regular expressions are a way to formulate complicated search queries ("patterns") in such a way that a computer can understand them. There exist many good sources for learning regular expressions, but most of them (including regexone.com, by which this tutorial is inspired) are geared towards programmers, and their examples are not directly relevant to humanists, which can make it difficult to see the usefulness of regular expressions for humanists. This tutorial is specifically aimed at students and researchers in the humanities.