For policy-makers, this event offers a unique opportunity to understand how Open Science skills can enhance evidence-based decision-making across various domains. The focus on taxonomy provides a tangible example of how these skills can be applied to support key policy areas such as biodiversity conservation and the implementation of the EU Green Deal. The event also aims to gather other major categories of stakeholders including organisations in the area of Citizen Science, education and training, private sector and research. The event will open pathways to understand how the fundamental sciences centred around taxonomic research and the overarching principle of open science can largely contribute to societal advances.