A very nice little second-hand bookstore, including a shelve with international books in French, English, and Spanish too. Always nice people to meet and a great selection of art and cook books, for affordable prices.
This museum of photography is really great, and the highlight for me after the inspiring exhibitions is the good coffee and great cakes at their coffee place.
I find myself there almost every second week for a drink and a slice of cake. The food is perfect, the ambiance is nice and it's really alive as a lot of people are coming directly from the running exhibition. At the entrance you can find an interesting bookstore and the best photoautomat of the city right outside.
Last but not least, it's only some meters from the Helmut Newton Fondation ( which doesn't have a nice coffee place itself yet ).
Peres Projects mostly showcases young, emerging artists and is at the forefront of fusing art with fashion, celebrity and the love of a good party, which seems to work very well in Berlin. Having recently moved into an ex-Soviet building on Karl Marx Allee, the giant new space contrasts brilliantly with the commanding facade.