David Beazley is the author of The Python Essential Reference (Addison-Wesley), The Python Cookbook, 3rd Ed (O'Reilly Media), and creator of several Python-related packages including Swig (https://www.swig.org), PLY (https://www.dabeaz.com/ply), and Curio (https://github.com/dabeaz/curio). A frequent PyCon conference presenter, he also teaches a variety of computer science and programming courses in Chicago. Further information is available at https://www.dabeaz.com.