Kazimierz Moczarski was a Polish resistance fighter who spent 255 days in a Warsaw prison cell shared with Jürgen Stroop, the SS general responsible for the liquidation of the Warsaw ghetto. Moczarski, a war hero captured by the postwar communist regime, turned his traumatic confinement into a systematic investigation of his cellmate. He recorded the candid, chilling admissions of the unrepentant Nazi general, which eventually became the classic work Conversations with an Executioner.

First published in 1977, the book faced severe censorship under Poland’s communist government. Moczarski had died by the time the initial, restricted version reached the public, and his daughter Elżbieta spent decades seeking a complete translation. This month, for the first time, a full English translation by Sean Gasper Bye arrives, marking the 50th anniversary of the original release.

Stroop’s testimony provides a stark look at the mechanics of genocide and the mindset of a high-ranking perpetrator. Throughout their months together, Moczarski relied on an extraordinary memory to document these interactions without the aid of notes. He fact-checked Stroop’s claims against his own knowledge and research, crafting a record that stands as a primary witness to the banality and cruelty inherent in Nazi ideology.

This release offers readers a rare opportunity to engage with a historical account that was suppressed for years. Moczarski’s work remains an essential examination of how individual conviction and state-sponsored horror align to destroy lives and communities. It serves as a reminder of the necessity of archival truth in the face of revisionist pressures.