Search terms will vary depending on your area of focus. You may wish to browse the video library by using the three horizontal lines by the Films on Demand logo to see the wide range of topics covered in this collection.
Libraries using Dewey Decimal Classification
Libraries using Library of Congress Classification
A call number, also known as a classification number, is the numerical or alpha-numerical string of numbers and letters that libraries use to identify, organize, and find individual items on library shelves.
All print or paper copies of books in the library are assigned a call number, usually found on the book spine (this is often referred to as a spine label).
The call number represents what the book is about and acts like the book's address on the library's shelves, also known as stacks. Because books on the shelves are arranged in call number order, you will find books on similar subjects shelved near each other.
Spine Label Examples:
Dewey Decimal Fiction Library of Congress
The Dewey Decimal Classification System is a classification system by which libraries organize their Non-Fiction collections numerically by subject. The system divides all knowledge into 9 basic subject classes, ranging numerically from 000-999. All Dewey Decimal call numbers are at least 3 digits long, and may be further extended by the use of decimal numbers. Each digit of a Dewey Decimal number signifies a level of subject specificity.
Dewey Decimal # 697
The Dewey number 697 is designated for Heating and Ventilation, specifically as they relate to Building. If you wish to browse the library collection in search of HVAC-related materials, this would be a good place to start.
The Library of Congress Classification System is a classification system by which libraries organize their Non-Fiction collections alpha-numerically by subject. The system divides all knowledge into 21 basic classes, each identified by a single letter of the alphabet. Most of these alphabetical classes are further divided into more specific subclasses, identified by two-letter combinations. Following these alphabetical headings, each topic is assigned a single number or a span of numbers. Whole numbers used in LCC may range from one to four digits in length, and may be further extended by the use of decimal numbers.
Library of Congress # TH7005-7699
The TH7005-7699 range of Library of Congress call numbers is designated for topics related to Heating and Ventilation and Air Conditioning. This is a very specific section of the much broader TH range, which focuses on resources related to Building Construction.
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