Kaomojis

📚🔢.

#dewey decimal system #library classification #book number #library science #cataloging

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#book spine label #shelfmark #library classification #book code #alphanumeric code #library catalog number

🏢📖🔢

#book location #shelfmark #library classification #book code #book catalog #library holdings

📚🔢🏷️

#call number #library classification #book location #dewey decimal system #library of congress classification #metadata #shelfmark

📚🗄️🔢

#UDC #library classification #knowledge structure #decimal notation #information retrieval #cataloging #organization system