Perhaps you have ever seen a "family tree" diagram? That too is a type of Zip Code Map Houston houston map with zip codes 28 images houston zip code map with 455 X 487! A map of family relationships. You might have also seen various diagrams of the evolution of species - a much larger-scale kind of "family tree". These are generally maps that include time as well as space! You can also have seen "timelines", which are a different kind of map of your energy. Zip Code Map Houston houston map with zip codes 28 images houston zip code map with 455 X 487 do not have to relate simply to spatial measurements!
Consider a dictionary, or the index of a book, or even the table of contents of a book. Those too are Zip Code Map Houston houston map with zip codes 28 images houston zip code map with 455 X 487. The book is an interesting circumstance because in a way it is a kind of reverse-lookup map, in that the text have recently been arranged to slip the map! That is, the text have been put into a chain determined by the map: the dictionary puts the words into alphabetic order for ease of finding them. The Dewey Decimal Program used in libraries is kind of like that too: it can help Zip Code Map Houston houston map with zip codes 28 images houston zip code map with 455 X 487 where in the library the book you are interested in can be found.
In essence a map is a representation of relationships. But it is also true that rendering is itself a map, because if you got no way of "mapping" (relating) the representation to whatever the representation symbolizes you might not even realise that the rendering is a representation at all! Think of the paintings of Pablo Picasso or Salvador Dali: pictures of things or people, yet distorted in some way. Should you distorted a picture even more, eventually it could be so distorted that you could not tell searching at it what it was intended to be a picture of; what symbolizes. Your eyes and head have to be able to "map" the image to the thing as a way to recognise what thing the represents.