This course is designed for individuals and groups who are interested in creating scholarly digital editions. Topics covered will include an overview of planning and project management, workflow and labour issues, and tools available for edition production. We will be working with the Modernist Commons (modernistcommons.ca), a collaborative digital editing environment and repository designed by the Editing Modernism in Canada (EMiC) project in collaboration with Islandora and its software-services company DiscoveryGarden. We will work on both text- and image-based editions, following a modularized edition-production workflow–from ingesting images, processing texts with optical-character-recognition software, uploading born-digital content, performing markup on transcriptions and images, collating variant texts, and displaying text and apparatus in different viewers. By the end of the course, participants will have worked through the practical implementation of a modular, small-scale edition prototype. Basic knowledge of TEI and some familiarity with RDF (specifically the standards of the Open Annotation Collaboration) is strongly recommended but not required. The seminar is open to everyone, although it is specifically tailored to participants of the EMiC project. Participants need not be modernists or Canadianists to take advantage of using open-source software and learning best practices for scholarly editing in digital media.