This bookshelf consists of modular units, bent and welded from steel wire, that hang from each other in vertical rows like the clusters of grapes for which it is named. Easily portable and easy to extend, a single column of Salkim can nonetheless bear at least 30kg of books. Inspired by the mobiles of Alexander Calder, its minimal lines disappear behind the books it holds, making it almost invisible when in use and allowing even weighty tomes to appear weightless.