To start learning piano, you can access comprehensive beginner resources like the Piano For Dummies guide or the Piano and Keyboard All-in-One For Dummies
A visual guide covering note names, the staff, and your first chord progressions. Beginner's Piano Book (Andersonstown Music School)
Technique des mains et posture
Apprendre le piano peut sembler intimidant, mais des ressources comme Le Piano pour les Nuls