Citation - Reference to the source article (drawn from the literature)
Date - Date of publication (drawn from the literature)
Data - summary of the data underpinning the visualisation creation (drawn from the literature)
Purpose - the driving force behind the email visualisation research (drawn from the literature)
Methods - the methods used for data analysis (drawn from the literature)
PC0, PC1, PC2, PC3, PC4	- The privacy conscious (PrivCon) level(s) assigned to the dataset. (Determined by the research and fully explained in https://doi.org/10.1007/s10502-022-09387-2)
Privacy - The extent to which privacy is discussed in the associated article  (drawn from the literature)
Patterns of relationship, patterns of behaviour, Content, SNA, email categorisation, interface - Categorisation of the visualisation purpose (Determined by the research and fully explained in https://doi.org/10.1007/s10502-022-09387-2)
Visualisation techniques - a note of the types of visualisation used in the article (drawn fro the literature)
Implications - analysis of the impact of the visualisation (Determined by the research conducted for https://doi.org/10.1007/s10502-022-09387-2)
Abstract - The abstract associated with the article (drawn from the literature)
Author Keywords - The keywords associated with the article (drawn from the literature)