Les Super Héros

Because they offer exclusive S&N exlibris (illustrated bookplate) free with many of the albums they sell, this should be the first BD shop you visit when in Paris.
Historically, many BD shops offered exclusive exlibris to entice customers to buy the album from them as opposed to their competition. Only a few produce exlibris anymore, but Super Heros still does!
So if you are looking for a particular album, you might as well check to see if this shop is offering it with an exlibris.

An absolute must-see for fans of BD. Amazing place. One of my favorite stores on the planet.