The Women in Digital Playbook serves as a comprehensive guide to support the development of a robust, transparent, and replicable WiD Index to assess the representation and progression of women across digital sectors in Europe. The playbook showcases how the WiD Index and Women in Digital Forum compliment each other, with the index offering data-driven insights while the Forum will work as a stakeholder collaboration and communication tool. It defines key terms, criteria for index design, and a scope that includes EU Member States and benchmark countries (Brazil, USA, India, UK). In particular the WIDCON playbook: Outlines a data model to be built through the use of both secondary desk research and primary research made through the rollout of a survey. Highlights a stakeholder-centered approach for validation and engagement across policymaking, industry, academia, and society as a whole. Breaks down all aspects of diversity, intersectionality, and gender mainstreaming to allow for a wholly inclusive form of data analysis. By following the guidelines and methodologies set forth in the WIDCON playbook, the Connecting Women in Digital Consortium, policymakers and researchers should be able to develop a strong response to closing the gender gap in digital professions, making the WiD Index a strategic resource for policy and synergy development across Europe and benchmarked countries.