Keynote Invitation ================== Sample letter to contact and invite somebody to be a keynote speaker Dear Dr. **X**, On behalf of the SciPy 2013 organizing committee, I would like to invite you to present your work as a keynote speaker at the twelfth annual Scientific Computing with Python conference [0], in Austin TX, June 24th-29th. We would of course cover all your expenses for the duration of the conference. This year SciPy has two topical themes in addition to a general track: Machine Learning and Tools for Reproducibility. Your applications of machine learning in science would help focus our conference around a topic that is becoming more prevalent. We expect to have two more keynotes, one on machine learning tools in Python and another on reproducibility tools, but the invitations are still pending. On a personal note, **X**. SciPy is a community dedicated to the advancement of scientific computing through open source Python software for mathematics, science, and engineering. At the annual SciPy Conference over 300 participants from academic, commercial, and governmental organizations showcase their latest projects, learn from skilled users and developers, and collaborate on code development. We have a thriving highly open community that you will find quite engaging and eager. It is organized in 2 days of tutorials (June 24th-25th) 2 days of conference (June 26th-27th) and 2 days of sprints (June 28th-29th). We would appreciate if you would let us know if you can come as soon as possible. We would also be very happy to discuss this or answer whatever question you might have over the phone (or real time interaction system of your choice) if you would like. Sincerely, Co-chairs of SciPy 2013 Andy R. Terrel, University of Texas, andy.terrel@gmail.com Jonathan Rocher, Enthought, Inc, jrocher@enthought.com