[ 02 / writing ]
Writing & Investigations
Books, investigations, and research on cryptography, public-interest data, media, and the practices that make information credible.
Complete index
Book
[ book ] forthcoming
MIT Press
Code, Power, and the Algorithmic Mediation of Everyday Life
Cryptographic Amnesia is a cultural history of how codes and ciphers moved from the margins of everyday life to its infrastructure. Rather than treating cryptography as a sequence of technical breakthroughs or instruments of war, the book follows its civilian uses and meanings across the twentieth century: as a way to protect secrets, verify identity, conduct commerce, resist surveillance, and organize political life. Based on archival research, long-form interviews, and public records, it asks how a technical practice came to carry such broad claims about freedom, trust, and power. The result is a people's history of cryptography and a newly usable past for anyone who relies on encryption today.
Investigations
[ investigation ] 2026
Enigma · Research contribution (institutional byline)
What is a single identity verification actually worth? A dollar figure, built up from Enigma's data.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2026
Enigma · Research contribution (institutional byline)
Surfaced 8,747 federal mass-defendant cases from the RECAP archive to show how mass-litigation targets businesses that don't really exist.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2026
Enigma · Research contribution (institutional byline)
What a shell company actually looks like, and how shared addresses, agents, and officers expose the networks behind them.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2026
Enigma · Research contribution (institutional byline)
Can the business fabric of a college town predict a March Madness winner? A test against recent tournament cities.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2026
Enigma · Research contribution (institutional byline)
The state structures that make anonymous business ownership a paid feature.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2026
Enigma · Research contribution (institutional byline)
How a Colorado licensing carve-out concentrated more than half of all crypto-named money-service-business registrants in a single state.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2026
Enigma · Research contribution (institutional byline)
Regional variation, cannabis correlations, and fragmentation across the drug-testing lab industry.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2026
Enigma · Research contribution (institutional byline)
How med spas use their business structure and registration to work around medical-practice rules.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2026
Enigma · Research contribution (institutional byline)
The implausible, unvalidated officer names that slip into official state business registrations.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2025
Enigma · Research contribution (institutional byline)
How long businesses in the vice trades survive, compared across several categories.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2025
Enigma · Research contribution (institutional byline)
A jurisdictional map of where corporate America incorporates, and why.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2025
Enigma · Research contribution (institutional byline)
What a viral pizza review is actually worth, traced through review scores, revenue, foot traffic, and geography.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2025
Enigma · Research contribution (institutional byline)
Revenue, geography, and star status, compared across more than 1,700 restaurants.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2025
Enigma · Research contribution (institutional byline)
How seasonal Halloween stores occupy and reuse the empty shells of former retail space.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
Articles
[ article ] 2026
arXiv preprint · Co-author and academic advisor ·
with Stephen Kasica (lead author), Tamara Munzner
An interactive take on multi-table data wrangling that continues the work begun in Table Scraps.
Read on site →
Lead author: Stephen Kasica. Charles co-authored as academic advisor on the doctoral research; these are not sole or primary publications of his.
2025
IEEE Transactions on Visualization and Computer Graphics (IEEE VIS) · Co-author ·
with Tamara Munzner
A process model for the hidden, below-the-waterline work of critical data analysis, reframed through an interpretivist lens.
Read on site →
With Tamara Munzner. Related newsroom data papers led by Stephen Kasica are listed separately under advisor co-authorship.
2024
Beyond Academic Publics · Linköping University Press ·
with Rosalie Yu
A look back at Knowing Together, and what a digital model can and cannot preserve of an embodied, collaborative experience.
Read on site →
2023
ACM CHI · Co-author and academic advisor · Best Paper Honorable Mention ·
with Stephen Kasica (lead author), Tamara Munzner
An ethnography of how journalists and data scientists actually clean data.
Read on site →
Lead author: Stephen Kasica. Charles co-authored as academic advisor on the doctoral research; these are not sole or primary publications of his.
2020
IEEE Transactions on Visualization and Computer Graphics · Co-author and academic advisor ·
with Stephen Kasica (lead author), Tamara Munzner
A framework for wrangling data spread across many tables, built from an artifact study of computational-journalism notebooks and pipelines.
Lead author: Stephen Kasica. Charles co-authored as academic advisor on the doctoral research; these are not sole or primary publications of his.
2019
Leonardo · ACM SIGGRAPH Art Gallery ·
with Rosalie Yu
A collaborative photogrammetry experiment that preserved distortion as evidence of the people and process behind a 3D image.
Read on site →
2017
Journal of Communication Inquiry
Reads Benjamin’s theory of print as a media history problem: how a technology of reproduction reshapes what counts as culture.
Read on site →
2014
Journal of Visual Culture ·
with Kate Brideau
A cultural history of Impact, the typeface that became the definitive look of the image macro and the internet meme.
Reports
[ report ] 2025
Web Almanac · HTTP Archive · Writer and analyst
How the web actually uses type, measured across millions of sites: what fonts get loaded, in what formats, and at what cost to the page.
Read on site →
2024
Web Almanac · HTTP Archive · Co-writer and editor ·
with Bram Stein
Web typography at global scale, from font formats and delivery to variable fonts, icons, and how type actually renders.
Read on site →
2016
Tow Center for Digital Journalism
The first published study of how newsrooms adopted SecureDrop for secure communication with anonymous sources.
Read on site →
2016
Knight Foundation ·
with Cheryl Phillips
A national study of data-journalism teaching at 113 programs, with practical models for developing computational curricula.
Read on site →
2014
Sensor Journalism · Tow Center for Digital Journalism
A history of sensing technology, and how measurement devices changed what a journalist can observe in the first place.
Read on site →
Features
[ feature ] 2018
Google Design · Writer
A beginner's guide that chooses a web font the right way round, starting from the content, its readers, the languages it has to cover, and what the browser has to do to render it.
2018
Google Design · Writer
The designers remaking Indian type for a moment when scripts, technologies, and reading habits are all changing at once.
2018
Google Design · Writer
The design and engineering decisions behind bringing Arabic typography onto digital screens.
2017
Google Design · Editor
A technical guide by Rod Sheeter to using downloadable fonts and making more deliberate typographic choices in Android applications.
Edited by Charles Berret. Written by Rod Sheeter.
2017
Google Design · Writer
The history and contemporary craft of designing type for the Cyrillic script.
2017
Google Design · Writer
Foundry practice, display type, and the constant reinvention of typographic form.
Essays
[ essay ] 2025
Enigma · Research contribution (institutional byline)
How to read a business's identity beyond its state filings: address clusters, contact graphs, zombie entities, and sudden proliferation.
Published under Enigma’s institutional byline. Part of the agentic data-journalism research pipeline described under Projects → Data Journalism.
2025
School for Poetic Computation ·
with Rosalie Yu
Teaching photography, photogrammetry, and world-building as ways to think about memory, ritual, collaboration, and the ordinary business of living.
2024
OSF
Cryptography as a drawbridge on the communications bridge: raising and lowering access without tearing the channel down.
Read on site →
2017
Columbia Journalism Review
How SecureDrop-era tooling made leaking easier for sources and safer for newsrooms, without trading one for the other.
2016
Columbia Journalism Review ·
with Cheryl Phillips
Why journalism schools need computational literacy, not as a specialty, but as a core skill for reporting in a data-shaped world.
Reviews
[ review ] 2010
TriQuarterly
On Dietmar Elger's biography of the painter Gerhard Richter.
2010
TriQuarterly
On Kyle Gann's study of John Cage's silent composition 4'33".
Dissertation
[ dissertation ] 2019
Columbia University
The doctoral dissertation behind Cryptographic Amnesia, examining how cryptography acquired new cultural and political meanings in twentieth-century America.
Read on site →
The on-site file contains selected excerpts.
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