Since we’re on the subject of secret rooms, here is another one. A home office that hides behind the bookcase is part of a house in Vietnam designed by i.House Architecture. What a cool way to find solitude and peace, while working. See the rest of the interior here.
This amazing wall of books is part of the apartment in Brazil, designed by architect Consuelo Jorge. And even though this particular space is not small, this element can work very well in a studio or other open-plan apartment. It creates privacy and a heck of a visual impact. You can see the rest of the apartment here.