The Relational Map is the default view. It is the first map displayed after any search. The Relational Map shows all of the connections in the network - investment, board membership, and management team membership. It displays the all of the Natural Links. All of the other map types show only some of the Natural Links or show the Derived Links, but this is the only 'complete' view. When two nodes are linked in a Relational Map the link represents some kind of real world relationship. If an Investor node is linked to a Company node (green link), it means that the Investor made a capital investment into the Company. If a Person node is linked to a Company node (purple link), it means that the Person is on the Management Team of the Company. If a Person node is linked to a Company node (red link), it means that the Person serves on the Board of the Company, and in this case the line can be solid, dashed, or dotted to further indicate in what capacity the Person served on the Board. You can also see that there are lighter shades of the purple and red links that represent the former relationships of Board Members and Management Team Members who are no longer with those companies. In other map types, the links represent common affiliations rather than actual real world connections.
Examining the Relational Map can yield a great deal of information about how all of the different node types are linked to one another and how they cluster. Sometimes the Relational Map is too busy and cluttered to be immediately useful. In this case you can still look for clues about what part of the Relational Map seems to be the most interesting and deserving of more in-depth analysis. This will help you decide what filters to apply, or which of the other map types are likely to be most informative.