Academic

 A study reported in 1972 of the author/title section of the card catalog in the Norlin Library of the University of Colorado (population: 1,000,000 cards; sample size: 2,500 cards) showed thatthere was a filing error in the sample of 1.1%. 52% of the errors were due to lack of knowledge of the filing rules, and 48% were mechanical or simple alphabetical mistakes.             (Source)

        Ibid…. showed thatin the sample 10.14% of the cross-references were blind.                        (Source)

        Ibid…. showed thatin the sample 1.48% of the cards were judged to be mutilated, i.e., call numbers or other essential information was torn off or completely obscured by dirt and wear.                     (Source)

Dr. David Kohl

 "Libraries in the digital age are experiencing the most profound transformation since ancient Mesopotamian scribes first began gathering and organizing cuneiform tablets."

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