Tutor profile: Kathryn C.
Subject: Library and Information Science
What is the purpose of a call number?
A call number is used to place items that are similar subjects together on a shelf. A librarian will use the Library of Congress or Dewey Decimal System of classification.
Kathy has volunteered to participate in a scientific experiment to test the effectiveness of a new anti-anxiety medication. She is randomly placed into a group that will take this medication for three months and record the level of anxiety in a daily survey.
Kathy is placed into the experimental group.
"I arrived home to find a flat package; left by the delivery man leaning up against the front door." Is this sentence correct?
No, the phrase "left by the delivery man" should be offset by two commas. Package, left by the delivery man,
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