“Information design is the practice of presenting information in a way that fosters efficient and effective understanding of it. The term has come to be used specifically for graphic design for displaying information effectively, rather than just attractively or for artistic expression” The term information graphics tends to be used by those concerned with diagramming and display of quantitative information.
'Information design' emerged as a multidisciplinary area of study in the 1970s. In technical communication, information design refers to creating an information structure for a set of information aimed at specified audiences. It can be practiced on different scales.
Source: (unashamedly taken from) Wikipedia