It seem a fairly obvious connotation, building and bricks, but one doesn't often realise that there are many different types of building brick and they are often suited best for specific types of building.

When planning a building there are a whole lot of aspects to consider, like:

Size of the building
How many storeys
What is the building going to be used for
Budget
What kind of finish will the building have? In other words will it be plastered or will the bare brick be visible (making face-brick another option)