Adults can use any of our books to get started on the piano! It's a wise move to start with a very simple method, regardless of your age. Adults and older kids are already prepared intellectually to read music, simply because of their age and experience.
The Missing Step
We're not trying to eliminate reading music. Rather, we believe there is a missing step in beginning piano, and that step is to simply let the student enjoy the piano, before the struggles of learning to read music.
The easiest way to do this is to use numbers instead of notes, leaving notes for later when the student has had a chance to get to know the piano keyboard.