To get at some of our large collection of printed material related to the German Jewish experience, try a wide-ranging search for "Judaism" as a subject heading in the Rubenstein catalog and limit to works in German here, or search for "Jewish" as a subject heading in German here.
You can then also limit according to date range, if you'd like. Our collection is particularly strong in works from the 19th and 20th centuries. Or you can limit according to a particular interest.
Learn more about our collection of German Judaica on our blog! Check out relevant entries here.
We have many items related to Martin Luther, the Reformation, and the Counter-Reformation.
To find many of these items you could search for "Reformation" as a subject heading limited by language (German) and publication year (before 1800) here.
Or search for "Luther, Martin, 1483-1546" as a subject heading limited by language (German) here.
Searching for "Lutheran Church" as a subject heading yields many results in German and in English, from Europe and from early settlers in the United States, and you can limit the search according to your needs.