Global Level (Public)

Also known as Global Variables or Project Level.
A public module level variable is declared in the declarations section of a code module and is visible to all modules in the project.
Global level variables can have two flavours either Public or Global.
If you declare a variable at the top of a module with the Private statement it is not global level, its module level.

You must insert these statements at the very top of your modules, before any procedures or functions.
A public variable at the top of a module can be used outside that module.

Public or Global ?

Declaring as Global is exactly the same as Public and is only included for backwards compatibility.

Always use Public for Global Level variables.

Inside Userforms

Global level variables must also be declared in a standard code module and not is a userform or class module.
Declaring a variable as Public inside a userform does not make it public.
It is still private and only visible to that userform code module only.