# ISBN (identifier)

International Standard Book Number

ISO standard, publication identifier| Subclass of | European Article Number, URN, non-persistent identifier, persistent identifier  |
| Year dem found am | 1966  |
| Short name | ISBN  |
| Dey replace | Standard Book Number  |
| Studied by | library science  |
| Maintain by | the International ISBN Agency  |
| Identifies | book edition  |
| Stack Exchange tag |   |

De **International Standard Book Number** (**ISBN**) be numeric commercial book identifier wey dem dey intend am make e be unique. Publishers dey purchase anaa receive ISBNs from an affiliate of de International ISBN Agency.

### Issuing process

A full directory of ISBN agencies be available for de International ISBN Agency website top. A list for a few countries be given below:

* Australia – Thorpe-Bowker
* Brazil – De National Library of Brazil; (Up to 28 February 2020)
* Brazil – Câmara Brasileira do Livro (From 1 March 2020)
* Canada – English Library and Archives Canada, a government agency; French Bibliothèque et Archives nationales du Québec;
* Colombia – Cámara Colombiana del Libro, an NGO
* Hong Kong – Books Registration Office (BRO), under de Hong Kong Public Libraries
* Iceland – Landsbókasafn (National and University Library of Iceland)
* India – De Raja Rammohun Roy National Agency for ISBN (Book Promotion and Copyright Division), under Department of Higher Education, a constituent of de Ministry of Human Resource Development
* Israel – De Israel Center for Libraries
* Italy – *EDISER srl*, own by *Associazione Italiana Editori* (Italian Publishers Association)
* Kenya – National Library of Kenya
* Latvia - Latvian ISBN Agency
* Lebanon – Lebanese ISBN Agency
* Maldives – De National Bureau of Classification (NBC)
* Malta – De National Book Council (Maltese: *Il-Kunsill Nazzjonali tal-Ktieb*)
* Morocco – De National Library of Morocco
* New Zealand – De National Library of New Zealand
* Nigeria – National Library of Nigeria
* Pakistan – National Library of Pakistan
* Philippines – National Library of the Philippines
* South Africa – National Library of South Africa
* Spain – Spanish ISBN Agency – Agencia del ISBN
* Turkey – General Directorate of Libraries and Publications, a branch of de Ministry of Culture
* United Kingdom den Republic of Ireland – *Nielsen Book Services Ltd*, part of NIQ
* United States – R. R. Bowker

### Registrant element

| ISBN | Country or area | Publisher |
| --- | --- | --- |
| `99921-58-10-7` | Qatar | NCCAH, Doha |
| `9971-5-0210-0` | Singapore | World Scientific |
| `960-425-059-0` | Greece | Sigma Publications |
| `80-902734-1-6` | Czech Republic; Slovakia | Taita Publishers |
| `85-359-0277-5` | Brazil | Companhia das Letras |
| `1-84356-028-3` | English-speaking area | Simon Wallenberg Press |
| `0-684-84328-5` | English-speaking area | Scribner |
| `0-8044-2957-X` | English-speaking area | Frederick Ungar |
| `0-85131-041-9` | English-speaking area | J. A. Allen & Co. |
| `93-86954-21-4` | English-speaking area | Edupedia Publications Pvt Ltd. |
| `0-943396-04-2` | English-speaking area | Willmann–Bell |
| `0-9752298-0-X` | English-speaking area | KT Publishing |

#### English-language pattern

English-language registration group elements be 0 den 1 (2 of more dan 220 registration group elements). Dem divide dese two registration group elements into registrant elements insyd a systematic pattern, wich dey allow make dem determine dema length, as follows:

| Publication element length | 0 – Registration group element | 1 – Registration group element | Total Registrants |
| --- | --- | --- | --- |
| From | To | Registrants | From | To | Registrants |
| 6 digits | 0-00-xxxxxx-x | 0-19-xxxxxx-x | 20 | 1-01-xxxxxx-x 1-05-xxxxxx-x | 1-02-xxxxxx-x 1-05-xxxxxx-x | 3 | 23 |
| 5 digits | 0-200-xxxxx-x 0-229-xxxxx-x 0-370-xxxxx-x 0-640-xxxxx-x 0-646-xxxxx-x 0-649-xxxxx-x 0-656-xxxxx-x | 0-227-xxxxx-x 0-368-xxxxx-x 0-638-xxxxx-x 0-644-xxxxx-x 0-647-xxxxx-x 0-654-xxxxx-x 0-699-xxxxx-x | 494 | 1-000-xxxxx-x 1-030-xxxxx-x 1-040-xxxxx-x 1-100-xxxxx-x 1-714-xxxxx-x | 1-009-xxxxx-x 1-034-xxxxx-x 1-049-xxxxx-x 1-397-xxxxx-x 1-716-xxxxx-x | 326 | 820 |
| 4 digits | 0-2280-xxxx-x 0-3690-xxxx-x 0-6390-xxxx-x 0-6550-xxxx-x 0-7000-xxxx-x | 0-2289-xxxx-x 0-3699-xxxx-x 0-6397-xxxx-x 0-6559-xxxx-x 0-8499-xxxx-x | 1,538 | 1-0350-xxxx-x 1-0700-xxxx-x 1-3980-xxxx-x 1-6500-xxxx-x 1-6860-xxxx-x 1-7170-xxxx-x 1-7620-xxxx-x 1-7900-xxxx-x 1-8672-xxxx-x 1-9730-xxxx-x | 1-0399-xxxx-x 1-0999-xxxx-x 1-5499-xxxx-x 1-6799-xxxx-x 1-7139-xxxx-x 1-7319-xxxx-x 1-7634-xxxx-x 1-7999-xxxx-x 1-8675-xxxx-x 1-9877-xxxx-x | 2,867 | 4,405 |
| 3 digits | 0-85000-xxx-x | 0-89999-xxx-x | 5,000 | 1-55000-xxx-x 1-68000-xxx-x 1-74000-xxx-x 1-76500-xxx-x 1-77540-xxx-x 1-77650-xxx-x 1-77830-xxx-x 1-80000-xxx-x 1-83850-xxx-x 1-86760-xxx-x | 1-64999-xxx-x 1-68599-xxx-x 1-76199-xxx-x 1-77499-xxx-x 1-77639-xxx-x 1-77699-xxx-x 1-78999-xxx-x 1-83799-xxx-x 1-86719-xxx-x 1-86979-xxx-x | 22,010 | 27,010 |
| 2 digits | 0-900000-xx-x 0-900372-xx-x | 0-900370-xx-x 0-949999-xx-x | 49,999 | 1-869800-xx-x 1-916506-xx-x 1-916908-xx-x 1-919655-xx-x 1-987800-xx-x 1-991200-xx-x | 1-915999-xx-x 1-916869-xx-x 1-919599-xx-x 1-972999-xx-x 1-991149-xx-x 1-998989-xx-x | 113,741 | 163,740 |
| 1 digit | 0-6398000-x-x 0-6450000-x-x 0-6480000-x-x 0-9003710-x-x 0-9500000-x-x | 0-6399999-x-x 0-6459999-x-x 0-6489999-x-x 0-9003719-x-x 0-9999999-x-x | 522,010 | 1-0670000-x-x 1-7320000-x-x 1-7635000-x-x 1-7750000-x-x 1-7764000-x-x 1-7770000-x-x 1-8380000-x-x 1-9160000-x-x 1-9168700-x-x 1-9196000-x-x 1-9911500-x-x 1-9989900-x-x | 1-0699999-x-x 1-7399999-x-x 1-7649999-x-x 1-7753999-x-x 1-7764999-x-x 1-7782999-x-x 1-8384999-x-x 1-9165059-x-x 1-9169079-x-x 1-9196549-x-x 1-9911999-x-x 1-9999999-x-x | 164,590 | 686,600 |
| Total | 579,061 | Total | 303,537 | 882,598 |

* ISO 2108:2017 – International Standard Book Number (ISBN)
* International ISBN Agency – coordinates and supervises the worldwide use of the ISBN system
	+ Numerical List of Group Identifiers – List of language/region prefixes
	+ Free conversion tool: ISBN-10 to ISBN-13 and ISBN-13 to ISBN-10 from the ISBN agency. Also shows correct hyphenation and verifies if ISBNs are valid or not.
* "Guidelines for the Implementation of 13-Digit ISBNs" (PDF). Archived from the original (PDF) on 12 September 2004.
* RFC 3187 – Using International Standard Book Numbers as Uniform Resource Names (URN)
* Worldwide Auto-Converter at Library of Congress