How did the daily life and social fabric of the Warsaw Ghetto disintegrate under the systematic pressures of Nazi occupation? Chaim A. Kaplan, a Hebrew educator and intellectual, documents the erosion of his community from 1939 until his deportation in 1942. His writing provides a granular, eyewitness account of the administrative, physical, and psychological mechanisms used to isolate and destroy the Jewish population of Warsaw.

Historians and scholars regard this diary as a foundational primary source for understanding the internal life of the Warsaw Ghetto. Readers frequently note the stark, unvarnished nature of the prose, which captures the immediate reality of the occupation without the benefit of hindsight.