Archive - Knowledge is Power

Puzzle-themed holiday cards from a famous codebreaking couple

How Elizebeth & William Friedman celebrated the season.

Dec 17, 2022 •

January 2021

Elizebeth Friedman documentary, "The Codebreaker," premieres tonight on PBS

Dear “Knowledge is Power” readers and Elizebeth Smith Friedman fans: This is just a quick note to let you know about two new events: First, a…

Jan 11, 2021 •

November 2020

New honors for Elizebeth Friedman

And some thoughts on the 40th anniversary of her death.

Nov 1, 2020 •

August 2018

"The Woman Who Smashed Codes" out in paperback

a quick note from the author, and a favor to ask

Aug 29, 2018 •

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