The collection constitutes the Arthur Langerman Archive for the Study of Visual Antisemitism (ALAVA) at Technische Universität Berlin in Germany.

For the rest of her life, she almost never mentioned memories of the Shoah, which was nevertheless always present in the Langerman house: "Grief for the loss of murdered family members was omnipresent".

His business expanded considerably after he sold half of his stock to a jeweller in London; he then became an international reference in the field of colored diamonds.

Starting from then, he gathered one of the most important private collections of Antisemitica, composed of paintings and ancient engravings (XVIth -XXth centuries), statuettes (wood, ceramics, bronze), posters, original drawings, postcards and more.

Esquisse d’une collection insolite"[14] and "#FakeImages: Unmask the Dangers of Stereotypes",[15] which has been shown at the headquarters of the European Commission in Brussels and of the United Nations in New York City.

[16] In 2017, the Center for Research on Antisemitism of Technische Universität Berlin decided to commit important funds[17] to study Arthur Langerman's collection.

Langerman's collecting efforts were guided by his attempts to understand the history and geography of antisemitism "Most people, among them my parents, did not take measure of what was happening.

"[21] In March 2020, Arthur Langerman is awarded the prize "Mensch of the year 2020" by the Belgian magazine Regards, for his relentless work against antisemitism.

To preserve works in this language, Arthur Langerman has translated into French two books of short stories from Sholem Aleichem: La vie éternelle : histoires courtes pour marquer le temps (2012, Métropolis éditions), in collaboration with Ariel Sion, librarian at the Mémorial de la Shoah in Paris; Histoires pour enfants à ne plus mettre dans les mains des enfants in 2019 (MarqueBelge éditeur), illustrations by Sam Ringer [fr].

As a player of the classic pen and paper game Morpion solitaire or Join Five, Arthur Langerman holds the highest score obtained by a human in the 5D version.