EXCLUSIVE AT NET-A-PORTER.COM. Planning a few adventures in Europe's coolest cities? Our LUXE City Guides box is almost as essential as your passport. It contains five hand-picked travel books - for Berlin, Barcelona, Amsterdam, Venice and Istanbul. Each one is packed with insider tips on where to stay, eat, shop and people spot - and is sure to spark conversations with fellow travelers when out of your suitcase and back on the bookshelf.