The education arm

PEB Educational Services began as an educational publisher and curriculum developer, producing and licensing textbook content across STEM and non-STEM subjects for schools and institutions.

That publishing relationship is the basis for the Textbook Dataset’s ISBN-level attribution - every record traces back to a title PEB already held rights to catalog, not material assembled after the fact.

The relationship runs in one direction: publishing and curriculum work is the source of catalog access that makes the Textbook Dataset possible, not something the dataset business funds or depends on operating today. It is documented here for provenance, not offered as a separate service.

See the Textbook Dataset, which carries the ISBN and category fields this catalog access provides.