Terrific treat for those obsessed with graphics, fonts and the International history of print. This is one of the best speciality museums I've ever visited, the 3 floors are set out well and beautifully designed, lots of printing machines, examples of graphic designs and rare printing, texts are in English as well as French.
The museum is in a 15th century former Hotel de Ville and has lots of nooks and crannies and you enter from a handsome courtyard... Great shop too, friendly staff, located on a side street off Rue du President Edouard Herriot, up from the Cordeliers metro station...from 10.30 A.M closed Mon & Tue.