Louie is a barker, too. That's why he is called LOUD Louie. He is the Informer, The Doorbell (Unreliable, as many times we have answered the door for Casper the Friendly Ghost - ) We've been through school, videos, books, etc...
We've learned to embrace the barking ... We work from home also. We do remind him that he does not have to inform us of everything, we realize he thinks it is his job... we try and find him other things to do when he gets too Barky.