Ville de Luxembourg had published a good booklet with grammar rules "Apprendre le Luxembourgeois", which can be found on their site.
It starts with several pages of vocabulary in pictures.
![](https://letzebuergesch.review/content/images/2019/05/image-3.png)
Then it follows with grammar rules and forms of words, summing up such topics as declination, definite and indefinite articles, dative forms etc.
![](https://letzebuergesch.review/content/images/2019/05/image-5.png)
And the last part contains short dialogs, which you can also listen with the help of mp3 files also available on the same page.
![](https://letzebuergesch.review/content/images/2019/05/image-4.png)
The book is useful for me to look up some forms of words that get forgotten...
A couple of years ago, from what I heard, this book was freely available in printed version. Now you can enjoy PDF version.