Len De Groot
Data & Visual Journalism
Tell Me More

What I do

More than 20 years of experience in...

Visual Journalism

I build and manage teams of digital visual journalists, producing interactive, animated and virtual reality stories.

Data Visualization

We have a duty to report, share and contextualize data and the impacts on society. I visualize data to reveal and illustrate patterns that inform.


I have trained thousands of journalists, students and communications professionals in person and online, in universities and in newsrooms


Work I have produced, edited or art directed. = award winning

Virtual Reality Tour of Gale Crater

How the Gale Crater VR Tour Was Made

Evolution of the California Drought

Eating the Drought: The Water in a Meal

California Water District Report Cards

Water Main Leaks Near You

Rent or Own: Where Can You Afford to Live?

Opposing Views in Gardena Police Shooting

5,001 Los Angeles Killings in 120 Seconds

Where Are L.A. County’s Homeless?

Map Maker: An Open Source Tool for Newsrooms

Quiet LA: Open Source Map Tiles for Data

Inside the Fight: Mayweather vs. Pacquiao

Injuries Make Laker's Lineup a Merry-go-round

The Girl Scout Cookies You're Not Getting

How Oscar Votes Are Counted

Where Are Syria’s Refugees Going?

How Much Can a Longshoreman Make?

Could You Live on L.A.'s New Minimum Wage?

The Evolving Elements of Pop Music

The How to Be a Writer Game

The Many Faces of Robin Williams

Chinese Zodiac Matchmaking Guide

Sandra Bland's Arrest Video: What It Shows

Death of the Salton Sea

Fly Over the Hollywood Fault Zone

Prop 47 is Part of Larger Push

Voting with Your Tweet Experiment

Signs of a Warmer Planet

Busiest Season on Record


Director of Data Visualization, Los Angeles Times

I currently lead award-winning data and visualization efforts with an emphasis on explanatory content. We produce innovative stories using code.

Data Visualization Instructor, KDMC Berkeley

In my previous position, I taught data and visualization courses at the Graduate School of Journalism at the University of California, Berkeley and continuing education courses with the Knight Digital Media Center.

Curriculum Vitae

Contact me

  (954) 557-3611        len at degroot dot biz