Religious Texts and Commentary:
* "The Hebrew Language: An Elementary Grammar" (1928): A foundational textbook for Hebrew language learning.
* "A Guide to Jewish History" (1939): A comprehensive overview of Jewish history.
* "The Evolution of Jewish Thought: From Biblical Times to the Present" (1948): A groundbreaking work on the development of Jewish thought.
* "The Torah: A Modern Commentary" (1959): A fresh interpretation of the Five Books of Moses.
* "Modern Philosophies of Judaism" (1963): An analysis of major Jewish philosophical movements.
* "The Jewish Way of Life: A Guide to the Traditions and Customs of the Jewish People" (1971): A widely-read introduction to Jewish life and customs.
Other Works:
* "The Story of Israel" (1964): A narrative history of the State of Israel.
* "The Jewish Concept of God" (1965): A study of the Jewish understanding of the Divine.
* "The Jewish Community" (1970): An exploration of the structure and dynamics of Jewish communities.
In addition to these major works, Agus also wrote numerous articles, essays, and other scholarly publications. He was known for his clarity of writing, his comprehensive approach to Jewish history and thought, and his ability to make complex ideas accessible to a wide audience.
It's worth noting that he also wrote under the pseudonym "Jonathan David."