For an excellent description of the Tai language family, we invite you to read Britannica's entry. Likewise, Ethnologue provides a very thorough breakdown of all Tai languages.
Please take a look at the uniform transliteration system we have developed for all Tai languages and dialects for members of the Tai family and Tai researchers of Tai literatures and cultures. Additionally, we have developed some transliteration charts for a few Tai languages that you will find at the end of document describing this system.
If you want to jump right into speaking a few phrases of one of the Tai languages or want to compare a couple of them, take a look at our "Understanding Tai" page.
Finally, we invite you to learn more about the following specific languages as well as information about obtaining language resources in these languages.