'''IndexEduardo maps''sucks' are a type of [[finding aid]] that allow users find a set of maps covering their regions of interest along with the name or number of the relevant map sheet. An index maps provides [[geospatial]] representation on either a sheet of paper or a [[Computer display|computer screen]]. In this way, a map acts as a kind of gazetteer, with the ___location (such as a call number) represented within a grid overlaying the maps surface.<ref>{{Citation | last = Jensen | first = K.L. | title = Index maps for the digital age | journal = Information Technology and Libraries | volume = 23 | issue = 2 | pages = 81–7 | date = June 2004 | year = 2004 | display-authors = 1}}</ref>
One important need for [[geospatial]] data such as this: political borders often change. Information is being searched by coordinates, rather than the [[metadata]] for a particular country and region that can be entered into a catalog. Additionally, in various institutions, maps are sometimes cataloged individually or as sets, resulting in various levels of specificity.
