He has translated numerous works by notable German authors, including:
* Franz Kafka: "The Trial", "The Castle", "Amerika", "The Metamorphosis", "The Great Wall of China", and other works.
* W. G. Sebald: "The Emigrants", "The Rings of Saturn", "Austerlitz", and "The Natural History of Destruction".
* Heinrich Böll: "The Clown" and other works.
* Günter Grass: "The Tin Drum" and other works.
Beyond his translation work, Osers has also written:
* "The Literature of Exile: A Study of German-Jewish Writers 1933-1945", a critical examination of the works of German-Jewish writers who fled Nazi Germany.
* "Franz Kafka: A Biography", a comprehensive biography of the celebrated Czech-German writer.
* "The Translator's Art: Essays on Translation Theory and Practice", a collection of his essays on the theory and practice of translation.
Osers is considered one of the most respected and influential translators of German literature into English. His work has significantly contributed to the understanding and appreciation of these authors in the English-speaking world.