is a series of three-dimensional pop-up illustrations created for the Gallery Prozori in Zagreb, which shares its space with a public library. Therefore, to connect the gallery and the library, illustrations were incorporated in a second-hand books which were bought at a flea market for a low price. The books were displayed as they were accidentally left at the gallery and library. When the visitors opened the books, the illustrations sprang to life and the books turned into busts of some of the most brilliant men and women throughout history, for example, Albert Einstein for physics. Every detail on these pop-up illustrations was handmade, from cutting to assembling. And in order to work, all these installations need is a kinetic energy. Thus interaction with visitors is crucial.