What is la pâtisserie?

La pâtisserie has three different meanings in French: 
1-It is the art of baking cakes, pies, cookies, creams, etc.
2-It is the baked good itself.  For example. the macaron is a pâtisserie.
3-It is the boutique or store where baked goods are made, sold and sometimes eaten.  La Durée, Fresh Baguette are both pâtisseries.