The David Schomer talk on the art of espresso is actually quite scientific. The founder of the Espresso Vivace coffee shop in Seattle, Schomer specializes in quality control, roasting and training.
The speaker was educated at the University of Washington, receiving a Bachelor of Arts in Cultural Anthropology. From the Cornish College of the Arts he also received a BFA in Flute Performance. As described in the David Schomer talk, he gained experience in the United States Air Force as a metrologist at the Boeing Class A Standards Lab.
An important name in the coffee world, David Schomer authored several works including 'Espresso Coffee: Professional Techniques,' the 'Engineering Mediocrity' series of articles and 'Espresso Coffee: 2013.'