Isbn

usgb/ˈaɪˌɛsˌbiːˌɛn/
noun

A unique identifier assigned to books, allowing for efficient cataloging and purchasing.

You can find the ISBN on the back cover of most books.
Visual representation of "isbn" - A unique identifier assigned to books, allowing for efficient cataloging and purchasing.

Often appears as...

  • ISBN number
  • ISBN code

Usage tips

Formal

International Standard Book Number, book identifier, unique book code

Definition 1 of 1
Visual representation of "isbn"
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Understanding ISBN

It stands for International Standard Book Number, a key identifier in publishing.

Illustration for Understanding ISBN
Books published today must have an ISBN to be easily sold in stores.
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Importance of ISBN

An ISBN distinguishes between different editions and formats of a book.

Illustration for Importance of ISBN
When ordering books, always include the ISBN to avoid confusion.
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ISBN formats

ISBNs can be found in two formats: 10-digit (old) and 13-digit (new).

Illustration for ISBN formats
To identify a book version, note which ISBN format is being used.
Visual representation of the word "Isbn"

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