Deletion is a research area that focuses on the removal or erasure of data from various digital systems or platforms. This can include the deletion of files, emails, social media posts, or any other type of information stored online. Researchers in this area study the process of deletion, including the technical mechanisms involved, the implications for data privacy and security, and the challenges associated with completely erasing data from systems. Additionally, research in deletion also encompasses the legal and ethical considerations surrounding the right to be forgotten and data retention policies.