There are a variety of Select tools to enable you to select only those entities that are of immediate interest to you.
The Select tools include:
Select; select a single entity 
Circle; select all entities enclosed by the circle 
Polygon; select all entities enclosed by the polygon 
Properties; select entities based on specific properties 
Layers; select entities based on the layer to which they are assigned 
Select All; select all entities 
Expand; expand the selection of mesh entities to include other entities to which they are connected 
Select Enclosed entities; include only those entities that are fully enclosed by the selection polygon or circle 
Invert; invert the selection so that selected entities become deselected, and vice versa 
Select Facing entities; select entities that are facing the screen 
Save Selection; saves the selection to a given name, so you can select the same entities at a later date. 
Delete Selection; removes the saved selection list -
Deselect All
The entities that you have selected are then listed in the Selection List.