it is extremely important that your information
be current. It is always a good idea to get
the latest research on any topic
but sometimes information gets outdated.
example, an old
book on the "Dialogues of Plato" can
be just as relevant
today as when it was first written.
It is a good idea, however, to get some new materials
in addition to older materials for such a subject.
contrast, unless one is resarching the history
of gene therapy, a book
on gene therapy that is even a
couple years old may be too
is especially important in:
are being heavily researched and are thus changing
rapidly (such as cancer research)
businesses or current economic patterns
(such as the South Asian technology market)
politics (such as current U.S.
foreign relations )
about important contemporary
social issues (such as school
in mind, it takes years to publish books and months
to publish articles. The information contained
within them will be older
than the publication date.