This book constitutes the proceedings of the 21st IFIP WG 8.5 International Conference on Electronic Government, EGOV 2022, held in Linkoeping, Sweden, in September 2022. Chapters "Use of Commercial SaaS Solutions in Swedish Public Sector Organisations under Unknown Contract Terms", "Towards a Research Agenda for Personal Data Spaces: Synthesis of a Community Driven Process" and "Adapting a Faceted Search Task Model for the Development of a Domain-Specific Council Information Search Engine" are available open access under a Creative Commons Attribution 4.0 International License via...