Brian Okken's new book on pytest is a concise and insightful resource designed to enhance the productivity of Python developers by offering an in-depth exploration of the pytest framework's powerful features, such as fixtures, a robust plugin system, and extensive configuration options. The book is structured to be read in two evenings, with the initial chapters focusing on basic test writing and later chapters delving into more advanced topics, including integration with tools like Jenkins and coverage. It distinguishes itself from the official pytest documentation by providing a more didactic approach through practical examples using a simple CRUD/DB application, making it suitable for readers of all experience levels. The book highlights the advantages of pytest over the built-in unittest framework, emphasizing its less verbose syntax, rich CLI interface, and efficient test setup through fixtures. Although it does not cover Test-Driven Development (TDD), the book provides valuable practical tips and promotes a strong understanding of pytest's capabilities, making it a recommended read for developers interested in mastering software testing with Python.