Expos is a specialized CAD software, enabling tradeshow booths designing. It is a completely self-sufficient layout system. It uses Octanorm items first, but there are also libraries of furniture, stairways, electro, plants and other items included. Designing is very fast, because the designer creates the ground plan of the stand and Expos generates the 3D visualization from it. It is possible to design the booth (display) from an arbitrary combination of systems (Octanorm, Orbital, Alur, Struktur, Monti, SYMA Orbit, Subtil) and any atypical parts. The final projects for the given fair (exhibition, show) are usually supplemented with logos, pictures and surfaces.Expos is specialized for the exhibits (unlike e.g.AutoCAD) so the projection is very comfortable for a stand designer.Expos also generates the listing of used items including price and weight automatically.