If you are using the PDF version:
The Kontext series acts as a bridge between the rigid A1-A2 foundations and the complex, abstract requirements of the C1 level. The B2 level is often considered the "critical threshold" for professional integration in German-speaking countries. Kontext b2 pdf
Target Audience: Young adults and adults learning German as a Foreign Language (DaF). Current Edition: Typically covers B2.1 and B2.2 (split into two volumes or combined depending on the version). If you are using the PDF version: