Walloon has 4 main dialects :
- Eastern Walloon aka "Liègeois", noted EW.
- Central Walloon aka "Namurois", noted CW.
- Western Walloon aka "Wallo-Picard", noted OW.
- Southern Walloon aka "Wallo-Lorain", noted SW.
And two orthographies :
- Old system : Système Feller (SF).
- Unified and standardised system : Wallon unifié, rfondou walon (RW). Note that the spelling is unified but the pronunciation will be different from speaker to speaker.
Most of the time resources will focus on one dialect (sometimes on one village) and one orthography.
Which dialect to learn?
Central Walloon is the most versatile Walloon, you'll be able to understand a bit of everything and every speaker will understand you.
Eastern Walloon is the least "French" dialect out there, making it more difficult to learn for French speakers. However, it's by far the best documented dialect.
Western Walloon is the closest to French (and Picard), lots of resources available as well.
Southern Walloon is poorly documented and resources are hard to find.
Which orthography to learn?
Rfondou wallon wasn't as succesful as their authors had hoped. Ultimately, you'll have to switch from one spelling to another. I'd recommend to start with the spelling of your dialect and familiarise yourself with rfondou wallon at the same time. The Walloon Wikipedia is in rfondou Walloon but that's pretty much all you'll find in that spelling.
Courses/Textbooks
- S'initier au Wallon liègeois par les proverbes et les expressions by MEURICE Emile (EW, SF) : book with 33 lessons and audio here.
- Li Walon d'Lîdge sins må d'tiesse avou l'métôde da binamé Tchantchès (EW, SF) : Assimil-style book, 10 lessons + audio(?) + glossary.
- Apprenez le wallon avec le petit Tchantchès (EW, SF) : comic book around the local folklore with Walloon and French texts + audio. Link to webshop
- Le Wallon de poche by Assimil (all dialects, SF) : conversation guide, no audio.
- All sort of resources/pdf used to teach Walloon in Liège (EW, SF)
- Leçons de wallon (CW, SF) : 15 short lessons, with audio and English/French translations
- All sort of resources/pdf used to teach Walloon in Nivelles (OW, SF)
Grammar
- Po scrîre d'adram' Li walon d'Lîdje - Première partie : grammaire by STASSE Simon (EW, SF)
- Po scrîre l'adram' Li walon d'Lîdje - Deuxième partie : conjugaisons by STASSE Simon (EW, SF)
- Grammaire pratique de la langue wallonne by BERTRAND Joseph & DUCHESNE Jo (EW, SF)
- Grammaire wallonne en ligne (all dialects, bold is RW italic is SF) : good resource but perhaps too complex for absolute beginners
- Grammaire Aclote by COPPENS Joseph (OW, SF)
Dictionaries
- Motî d' potche - Dico de Poche : Walon/Francès Français/Wallon by EMBANNER Yohan (all dialects but words are not tagged, RW)
- Li "Ptit Larousse" do walon (all dialects, RW) : monolingual dictionary
- Wiccionaire : Wikipedia dictionary (all dialects, mostly RW) based on the previous one but regularly updated
- Dictionnaire du wallon liègeois by STASSE Simon (EW, SF) : Walloon-French dictionary with a French-Walloon glossary and conjugation tables
- Dictionnaire liégeois by HAUST Jean (EW, SF)
- Dictionnaire français-liègeois by HAUST Jean (EW, SF)
- Dictionnaire Wallon de Cerfontaine by BALLE Arthur (OW, SF)
- Dictionnaire des parlers wallons du pays de Bastogne by FRANCARD Michel (SW, SF)
- Dictionnaire Aclot-Français et Français-Aclot by COPPENS Joseph (OW, SF)
- Dictionnaire Wallon-Français - Dialect de Namur by PIRSOUL Léon (CW, SF)
More to come for sure