International Standard Book Number

The International Standard Book Number (ISBN) is a unique numeric commercial book identifier. Publishers purchase ISBNs from an affiliate of the International ISBN Agency.[1][2]

## See also

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* Wikipedia:International Standard Book Number
* Wikipedia:Barcode
* QR Code

## Learning Task

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* (Computer Science) ISBN International Standard Book Number can be regarded as primary key for database record for a book. Explain the purpose on a primary key in relational database in general. What are simarilities and difference between
* ISBN → {\displaystyle \rightarrow } Book and
* primary key → {\displaystyle \rightarrow } database record.
* An ISBN can be encode with a barcode. What is the benefit of barcodes and/or QR Codes in the context of a book store or library and information systems?

## References

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1. ↑ "The International ISBN Agency". Retrieved 20 February 2018.
2. ↑ Wikipedia contributors. (2018, June 13). International Standard Book Number. In Wikipedia, The Free Encyclopedia. Retrieved 18:56, June 19, 2018, from https://en.wikipedia.orghttps://en.wikiversity.org/w/index.php?title=International_Standard_Book_Number&oldid=845705922