While "Rivstart B1 B2 textbok PDF" is a high-volume search term, it is important to distinguish between legal digital access and pirated files:

The publisher, Natur & Kultur , offers digital versions of the textbook and workbook. These are typically accessible via a subscription or a license code found in physical books, rather than as a standalone, DRM-free PDF.

The B1+B2 level is the second installment in the series, bridging the gap between intermediate and upper-intermediate proficiency. Go to product viewer dialog for this item. Rivstart: B1 + B2. Textbok