Good designers are like children with a box of Crayolas; they can't wait to whip out their creative tools and go to town. Great designers have just as many tools and are equally as eager to use them. But what separates good from great is the latter's ability to edit — and to employ a level of restraint that transforms haphazard scribbles into works of art.

By the looks of its exhibit at EuroShop 2014, D'art Design Gruppe GmbH employs a bevy of great designers. The architectural-design and communication firm chose the theme of "Undo" for its exhibit. Managing director Freddy Justen explained the concept: "Design is a process of trial and error, and planning and unraveling, so successful design requires doing and undoing your ideas."

Five massive unfinished pine walls formed the base of the 18-foot-tall structure, while three "blocks" of equal size seemed to be stacked atop and merged within the base, forming a Jenga-like assembly.

Inside, attendees discovered a table littered with hundreds of blocks, many of which had been stamped with words such as "change" and "simplify." As some attendees constructed wooden towers, others used any of the 20 tablet PCs on the table that bore the word "Undo" on their screens. When pointed at any of the Quick Response (QR) codes printed on the booth's walls, the tablets revealed animated sketches, augmented-reality renderings, and videos that reiterated the theme.

Hailed by Exhibit Design Awards judges as "the epitome of clean, conceptual design," the booth maintained a natural yet minimalist feel through a sparse use of furniture and light fixtures, as well as limited graphics applications. Crafting an organic and interactive design, D'art demonstrated both its creative capabilities and its power of restraint. Ultimately, designers outdid themselves via an "undone" design. E