Two wellknown japanese cafeteria, close to the Louvre and the Palais Royal. Gyoza and Lamen served all day long. The one Rue St Anne is more traditionnal, chiefs are cooking in front of you. Often packed, in case there is a long waiting line, go to the one Rue St Honoré, you will eat the same!
I love to go to this library and often work there. It is very peaceful and the setting is beautiful. The library is a mine for books about design and architecture.