the usual dutik. Prices are high, just like everywhere else. Everything is in euros. The selection is large and there are many interesting things. Buying something for a gift in beautiful packages is the best thing.
The usual dutifree, but if there is time after check-in, so if you are a passenger who transfers in Istanbul, it is better to buy something immediately after receiving your luggage and immediately you can load everything into this luggage.
Lots of shops. Probably everything is there. It's impossible to get around them all. But if you have a lot of time, then there is a place to roam. They seem to be working around the clock