A Review of Annotations in Scholarly Editions and Research: Functions, Differentiation, Systematization. Eds. Julia Nantke and Frederik Schlupkothen (De Gruyter, 2020). https://doi.org/10.1515/9783110689112 [open access, some chapters in German]:
Melanie Andresen, "Annotation: A Uniting, but Multifaceted Practice. A Review of Nantke and Schlupkothen (2020)," Digital Humanities Quarterly 16 no. 4 (2022). http://www.digitalhumanities.org//dhq/vol/16/4/000655/000655.html
The volume Annotations in Scholarly Editions and Research: Functions, Differentiation, Systematization, edited by Julia Nantke and Frederik Schlupkothen, assembles research papers that are united in their focus on annotation, but display a broad variety of possible understandings of and approaches to annotation.