Freelance writer and reporter. Formerly at Quartz, The New York Times, and Foreign Policy magazine. My work has also appeared in New York Magazine, The New Republic, The Guardian, Vox, NBC News, Elle, Politico Europe, Outside, Vogue Poland, and more. A 2023 investigation for The Washington Post I co-authored received an honorable mention from the SABEW Best of Business Awards.

See my journalism portfolio here. These days, I write mostly about about tech, gender issues, and Eastern Europe.

I’m working on a book! U Up? will be a social history of online dating, published with One Signal/Simon & Schuster.

If you or your company want to work with me on a writing project, reach out at hanna@hannakozlowska.com. I offer ghostwriting, research, fact-checking, as well as developmental, line, and copy editing. I work on books, newsletters, annual reports, brand policies, and website content.

Photo: Saskia Kahn