This section contains discussion of two forms of expressions of data in an article, firstly the conventional Tables/Figures/Schemes as contained in the body of the article and secondly the presence of citations allowing specific access to more complete or at least less lossy primary data. The broad distinction is here made that the former representations might constitute processed and interpreted data, whereas ideally the latter types would constitute the more complete data from which the former are derived, such as that obtained from an instrument or output by a computational procedure. Specific examples illustrate the diYerence between the two.