• Reading and Finding a Call Number
      
    After you have searched the Sonoma Valley High School Public Access Catalog and found the item you are looking for, look carefully at the record for the call number. Call numbers are the unique address of every item in the Library.  The call number is based on the Dewey Decimal System.
    In our example, the call number is: 796.323 AUE
       
    book                                            

    Basketball book showing call number    
    796     Read the first line as a whole number 1, 2, 10, 20, 350, 796, etc.
    .323     Read the next number as a decimal: .009 .01 .3 .323, etc. ...
    .AUE     Read the second line as a combination of letters: AUE, BAK, COL, DEN, etc.
    1987     Read the third line as the year the item was orginally published.
       
    NOTE: The call number is on the bottom spine of the book. Read each line of the call number separately.