Mark Lutz is the world leader in Python training, the author of Python's earliest and best-selling texts, and a pioneering figure in the Python community since 1992. He is also the author of O’Reilly’s Programming Python and Python Pocket Reference, and co-author of Learning Python (all in 2nd or 3rd Editions). Mark began teaching Python classes in 1997, and has instructed more than 200 Python training sessions as of 2007. Mark also has BS and MS degrees in Computer Science and 25 years of software development experience. Whenever Mark gets a break from spreading the Python word,he leads an ordinary, average life in Colorado. Mark can be reached on the web at http://www.rmi.net/~lutz.