The Knowledge Hub is Circle Economy's collaborative library of circular economy case studies, gathering today more than 4800 ready-to-implement solutions from more than 100 countries with a monthly audience of 9000+ readers.

The model is open access and everyone can contribute. The Knowledge Hub is directly linked to digital products as it serves as the source for recommended solutions. It is based on the following three principles:

• Everyone contributes: the knowledge base grows quicker if everybody adds case studies.
• Everyone edits: It's not meddling, it's co-authoring! Version history ensures nothing is lost.
• Everyone curates: See any irrelevant, duplicate or promotional content? Report it to the Knowledge Hub admins!