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How to read a call number

Finding a book using the call numbers is pretty straightforward.  The call number is made up of letters and numbers and books are shelved alphabetically by the first letter or letters in the call number:

  • Example:

               Q 141. C23

              QA 234 .G67

              QD 34 . F45

After the first letters is a number which is read as a simple whole number:

  • Example:

               Q 24. C23

              Q 54 .G67

              Q 134 . F45

The second part of the call number is another letter shelved alphabetically, but the number after is read as a a decimal:

  • Example:

               Q 141. C235

              Q 141 .C3

              Q 141 . C499999

              Q 141 . C5

Q 141 . C499999 comes before Q 141 . C5 because both '499999' and '5' are treated as decimals.

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