After passing his school-leaving exams, he began a banking apprenticeship, which he abandoned; instead, he studied literature and history at the Universities of Leipzig and Berlin.

Landsberger shifted to writing literary works, which he published under the pseudonym "Hans Land" and some of which appeared as preprints in social democratic and syndicalist newspapers.

He cultivated connections with the naturalist literary movement (including the Friedrichshagener Dichterkreis [de]) and supported the goals of the Volksbühne.

[1] After Hitler's rise to power, Landsberger, as a Jewish writer interested in social issues, came under fire from the Nazi regime.

His dramatic efforts thus far have been confined to collaboration with Holländer in the production of Die Heilige Ehe: Ein Modernes Schauspiel in 5 Akten (Berlin, 1893).