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Regret the Error: How Media Mistakes Pollute the Press and Imperil Free Speech (Union Square Press/ Penguin Group Canada)

”…a winding journey through the most glaring, damaging and humorous typos, misprints, misidentifications, fuzzy numbers and obiticides in the history of journalism, from the accidental to the malicious.” — Publishers Weekly

Winner of the National Press Club’s Arthur Rowse Award for Press Criticism


Available in the U.S., Canada, U.K. and Australia.

Mafiaboy: A Portrait Of The Hacker As A Young Man (Lyons Press/Penguin Group Canada)

“Full of many behind-the-scenes surprises, the book is a remarkably detailed account of Calce’s life leading up to the attacks and what happened to him afterward.” — The Gazette (Montreal)


Winner of the Aurthur Ellis Award for Non-Fiction Crime Book of the Year


Available in Canada (French/English), the U.S., and Vietnam

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Lies, Damn Lies and Viral Content: How News Websites Spread (and Debunk) Online Rumors, Unverified Claims and Misinformation (Tow Center For Digital Journalism, Columbia University)
This in-depth report, which was published in book form, is based on research I conducted as a fellow with the Tow Center. I combined content and data analysis, interviews with journalists and experts, and my own experience. One conclusion: "Rather than acting as a source of accurate information, online media frequently promote misinformation in an attempt to drive traffic and social engagement."

Available for download for free here (PDF)


The Verification Handbook: For Disinformation and Media Manipulation​ (European Journalism Centre)
The latest edition of the Verification Handbook arrives at a critical moment. Today’s information environment is more chaotic and easier to manipulate than ever before. This book equips journalists with the knowledge to investigate social media accounts, bots, private messaging apps, information operations, deep fakes, as well as other forms of disinformation and media manipulation. The first resource of its kind, it builds on the first edition of the Verification Handbook and the Verification Handbook for Investigative Reporting.

Available for download for free here (PDF) in English, Italian, German, Turkish, and Arabic.

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Verification Handbook: A definitive guide to verifying digital content for emergency coverage​ (European Journalism Centre)
With contributions from leading journalists from the BBC, Storyful, ABC, Digital First Media and other verification experts, the Verification Handbook is a groundbreaking resource for journalists and aid providers. It provides the tools, techniques and step-by-step guidelines for how to deal with user-generated content (UGC) during emergencies.

Available for download for free here (PDF) in English, French, Greek, Portuguese, Turkish, Italian, Russian, Spanish, Arabic,  and Croatian.

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Verification Handbook For Investigative Reporting: A guide to online search and research techniques for using UGC and open source information in investigations (European Journalism Centre)
This companion to the original Verification Handbook offers detailed guidance and illustrative case studies to help journalists, human rights workers and others verify and use open source information and user-generated content in service of investigative projects.
The Handbook provides the fundamentals of online search and research techniques for investigations; details techniques for UGC investigations; offers best practices for evaluating and verifying open data; provides workflow advice for fact-checking investigative projects; and outlines ethical approaches to incorporating UGC in investigations.
Available for download for free here (PDF) in English, as well as in Russian, Arabic, Macedonian, and Turkish.
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