All fields use exact matches (e.g., a search for theologia christiana yields the exact phrase, including any spaces). To search for separate terms (e.g., theologia and/or christiana), use separate fields for each term.
Authors can be searched as either John Calvin or Calvin, John.
When the "Place" category is selected, searches return results for common place name variants (e.g., Geneva returns results for Genève, Genf, & Geneva). To search only for a particular variant (e.g. Genève), use the "Any" category.
Topic, Genre, and Relation to Bible are only partially categorized and will return fewer results.
Searches automatically recognize and return matches for a variety of equivalent early modern accents, ligatures, etc. (e.g., æ = ae / ju = iu / ß = ss).
Searches are case insensitive.