Background Information
At a high reading level, the average reader will become confused reading the
story. Therefore, the author should fill in the gaps with background information.
When in doubt about whether information should be included, the author should
put it in. For example, almost every piece on the O.J. Simpson case included in
the explanation and amplification section the basic information on what he was
on trial for even though it was basically common knowledge (-Cigelske).