kdmc Berkeley Staff & Trainers

Len De Groot

Len De Groot's avatar image

Len De Groot is the Interactive Design & Data Instructor at the Knight Digital Media Center at UC Berkeley’s Graduate School of Journalism, teaching mid-career journalists and graduate students skills to tell stories on the Web. He has nearly 20 years of newsroom experience and was graphics director for WSFL-TV and the SunSentinel newspaper in South Florida. While there he created and directed news graphics for print, interactive graphics for the paper’s Web site and animated news graphics and packages for a morning television news show and television station promotions. De Groot has been recognized with more than 30 international and national awards for informational graphics.

Core Skills

  • • Course design, instruction and online instruction
  • • Data cleaning, analysis and JavaScript visualization
  • • GIS (ESRI, QGIS, MAPublisher), 3D (LightWave), Adobe Creative Suite (all), VizRT

Recent projects

  • • Voting with your tweet: Developed visualizations of Twitter messages to illustrate daily win/loss predictions for 2012 congressional races.
  • • freeDive: Designed and developed a tool for making embeddable, user-searchable databases

Related sites


Curriculum Vitae 


Mini Twitter lendegroot   Mini Facebook lendegroot

Paul Grabowicz

Paul Grabowicz's avatar image

Paul Grabowicz is Senior Lecturer, Associate Dean and Director of the New Media Program at the UC Berkeley Graduate School of Journalism and teaches classes in multimedia reporting, new media publishing and video game storytelling.

He is co-author of "California Inc.," a book about how the entrepreneurial spirit shaped the politics, culture and economy of California, and has written extensively about issues in online journalism and digital technology.

A professional journalist for more than 25 years, he spent most of his career as the investigative reporter at The Oakland Tribune. He also served as night city editor and acting city editor and developed an early prototype of a Web site for the paper (it was rejected).

A graduate of the University of California, Berkeley, with a Bachelor of Arts degree in sociology, he began his journalism career in 1973 working for local papers in the San Francisco Bay Area, including the Bay Guardian. He has written for publications such as the Washington Post, Esquire magazine, The Village Voice and Newsday.

In 1995 he began setting up the New Media Program at the Graduate School of Journalism. He also was the driving force in creating the Knight Digital Media Center at the school.

Mini Twitter pgrabowicz   Mini Facebook Paul Grabowicz

Vicki Hammarstedt

Vicki Hammarstedt's avatar image

Vicki Hammarstedt oversees the new program development for kdmcBerkeley. Prior to joining kdmcBerkeley she managed operations, business development and marketing for start-up companies in mobile, telecom and e-commerce. She began her career as a high school teacher and has continued to support public education throughout her career, including developing a public school charter. Hammarstedt has a Bachelors degree in Biology from Michigan Technological University. She enjoys traveling with her family, sailing and organic gardening. Contact: vhammarstedt@berkeley.edu

Mitzi Mock

Mitzi Mock's avatar image

Mitzi Mock is a freelance producer living in the San Francisco Bay Area. She loves telling narrative stories in radio, video, photos and print. Her work has been featured on NPR’s Snap Judgment, The Bay Citizen, StoryCorps, Crosscurrents and Richmond Confidential. Most recently, she has worked as a multimedia trainer for the Knight Digital Media Center at U.C. Berkeley, supporting instruction in video, photography and data visualization. Before starting her career in journalism, Mitzi was a communications specialist. She developed social media strategies, produced print and multimedia content for web, and coordinated public relations on behalf of public and nonprofit agencies. She has a master’s degree in journalism from U.C. Berkeley’s Graduate School of Journalism and a bachelor’s degree from Princeton University.

» Follow the Knight Digital Media Center on Twitter!