Enterprise Modelling and Information Systems Architectures (EMISAJ) is a scholarly peer-reviewed open access journal with a unique focus on novel and innovative conceptual modeling research and its applications. We proudly announce that Prof. Dr. Peter Fettke is one of the editors for the special issue. It is titled “Blockchain Technologies in Enterprise Modeling and Enterprise Information Systems”. In this special issue, the editors are looking for high-quality articles that examine the use of block chains and the underlying technologies in enterprise modeling and enterprise information systems. More information about the journal itself can be found here and for more details about the special edition click here.