Quarex uses a three-level hierarchy to organize all content: Library → Shelf → Book. This structure means every book has a precise location, and that location is part of its meaning. Where a book lives tells you what kind of knowledge it contains.
Here is the actual path to the Sojourner Truth biography in Quarex, from the broadest category down to the individual book:
The k in the URL stands for Knowledge Libraries. Each library type has a short code:
Every book in Quarex belongs to exactly one of these seven library types. The library type determines the fundamental character of the knowledge it contains.
Each library type contains multiple libraries, and each library contains shelves. Here is the actual structure of the Knowledge Libraries:
The Political Biographies shelf within the Biographies library currently contains these four books:
The shelf itself becomes meaningful. These four people share a shelf not by accident but by design — they are all figures whose lives intersect with American political power. The proximity is the argument.
A book about racism placed in Knowledge Libraries → History and Anthropology is framed as historical scholarship. The same topic placed in Perspectives Libraries → Historical Narratives → Racism is framed as one perspective among many. Where a book lives shapes how it is understood.
The Geography Libraries contain a book for every country on Earth. These books describe what a country is — its geography, demographics, economy, and governance. They do not argue what you should think about it. That distinction is structural: geography goes in Geography Libraries, opinions go in Perspectives Libraries.
When a learner navigates from Knowledge Libraries → Biographies → Political Biographies → Sojourner Truth, they have already learned something before opening a single chapter: that this person is categorized as a political figure, that she sits among other political biographies, and that this is knowledge (not perspective or opinion). The hierarchy teaches.