This handbook has been prepared to further understanding among UNESCO staff and key stakeholders on what evaluation is, why it is important and who is responsible for what in the evaluation process.

UNESCO: Evaluation Guidelines | United Nations Educational, Scientific and Cultural Organization

Everyone knows why they do what they do, which is the key to greater success for the company and its employees.

FORBES: How Purpose Drives Revenue

One of the key questions of this era is: Why do we share what we share?

FORBES: Are You Being Followed By Helicopters?

More importantly, however, they are a key tool in helping to understand what is going on within countries, why progress is rapid in some and slow or non-existent in others.

UNESCO: Seminar on Education and Violent Conflict

The key issue is why the White House sought the sensitive background files and what use, if any, officials made of the data.

CNN: Senate Panel Looking At FBI Files Flap

Det Sup Jeff Hill said he "would not be drawn into speculating" on why the man was shot but believed the key to finding out what happened could be found "within the community".

BBC: Luton shooting victim was related to Delaney Brown