Book of Knowledge

Book of Knowledge

Chapters: 1 2 3 4 5 6 7 8 9 10

List of all languages referred to in the Book of Knowledge and other sections of the website.


DOWNLOAD and print out the Book of Knowledge.

Let’s Revise!

Go to the Let’s Revise section to see what you can learn from the Book of Knowledge or to test how much you have already learnt!

Phonetic exercises

Do you wish for some phonetic practice? Take a look at the exercises in the Phonetic Exercises section.

The “Book of Knowledge of Languages in Danger” (BoK) is a collection of texts providing descriptions of languages in danger in terms of the diversity of their structures, sounds, writing systems as well as issues related to multilingualism, language policy, documentation, revitalisation or cultural, social or technical problems related to the languages. The BoK is an integral part of the present website, it offers links to the related Interactive Map tasks and data included in another sections as well as to the external services and a vide variety of references for further reading. A downloadable version in PDF is available HERE.

The date of publication: 2014 (both for the on-line version and the English version of the PDF).

Citation: Nau Nicole, Hornsby Michael, Karpiński Maciej, Klessa Katarzyna, Wicherkiewicz Tomasz, Wójtowicz Radosław (2014). Book of Knowledge of Languages in Danger. On-line at: 

Licensing information: the content is available under Creative Common License, type: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0). In case of specific questions regarding re-sharing the contents or their fragments, please kindly contact the authors directly.

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

Table of contents:

1. Languages of the World

2. Exploring Linguistic Diversity

3. Language Structures

4. The Sounds of Language

5. Writing

6. Language and Culture

7. Multilingualism and Language Contact

8. Language Endangerment

9. Endangered Languages, Ethnicity, Identity and Politics

10. Language Documentation

Glossary, subject index

List of Languages

Let’s Revise! – Interactive Revision Exercises

Phonetic exercises

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