19 pages, This special issue presents recent European Commission-funded research into on-farm demonstration, undertaken through the Horizon 2020 PLAID (Peer-to-peer learning: Accessing innovation through demonstration), AgriDemo-F2F (building an interactive agridemo-hub community: enhancing peer-to-peer learning), and NEFERTITI (Networking European Farms to Enhance Cross Fertilisation and Innovation Uptake through Demonstration) projects, jointly branded ‘FarmDemo’.