PESTLE analyses look at the macro environment (i.e. the external environment that the business operates in)
Using the library, you will be able to find sources that address these factors - sometimes a source will address more than one factor since they are interdependent (i.e. technological changes can affect social factors).
Under each component of PESTLE, you'll find a list of relevant databases. Start at the top of the list and work your way down. The best places to start are: