How to build the note editor object model?

Question

OOP

I'm currently trying to write a note taking and editing application in WPF. I didn’t really practice OOP, especially in desktop applications, and along the way the question arose: can I designate notes as a class that will have, for example, a button in the list of notes in its properties? What will happen if the user creates new notes, new objects are created? I would be very grateful if you send me some articles or examples of programs that will help me deal with OOP.