This book constitutes the proceedings of the 19th International Conference on Perspectives in Business Informatics Research, BIR 2020. The conference was initially planned to be held in Vienna, Austria, during September 2020. Due to the COVID-19 pandemic it was postponed to be held together with BIR 2021.The 14 papers presented in this volume were carefully reviewed and selected from 48 submissions. The papers were organized in topical sections as follows: Digital Transformation and Technology Acceptance; Multi-perspective Enterprise Models and Frameworks; Supporting Information Systems Development; Literature and Conceptual Analysis; and Value Creation and Value Management.