»Dimensions. Journal of Architectural Knowledge« is an academic journal in, on, and from the discipline of architecture, addressing the creation, constitution, and transmission of architectural knowledge. It explores methods genuine to the discipline and architectural modes of interdisciplinary methodological adaptions. Processes, procedures, and results of knowledge creation and practice are esteemed coequally, with particular attention to the architectural design and epistemologies of aesthetic practice and research. »Collaborations: Rethinking Architectural Design«, Issue 05/2023, edited by Elettra Carnelli, Federico Marcolini, Fabio Marino, and Rafael Sousa Santos, explores the impact of collaboration on architectural design processes, considering the conditions and implications of their integration into practice and discourse. The issue includes contributions and visual essays as reports from teaching activities, realized or planned architectural projects, theoretical reflections on the topic, and the critical depiction of case studies, all of which concur to the definition of new roles and modes of practice, addressing the significance of collaborations in architectural design.