[2] Ainsworth designed posters for the General Post Office, Shell and the Empire Marketing Board but was increasing drawn to journalism.
[4] Ainsworth visited the Bergen-Belsen concentration camp three times after the British army entered the complex in April 1945.
In September 1945, Picture Post published several of these drawings along with an article, Victim and Prisoner, by Ainsworth.
In the article, Ainsworth attempted to challenge what he saw as the elements of indifference he had encountered in Britain to the Belsen trial, which had started that month.
Ainsworth also commissioned the author and artist Mervyn Peake to visit Belsen for Picture Post.