Expos is 2D and 3D CAD modelling software for exhibition stand design. It uses Octanorm items first, but there are also libraries of furniture, stairways, electro, plants and other items included. Designing is 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, Maxima, Orbital, Alur, Struktur, Monti, SYMA Orbit, Subtil) and any user defined objects. Final projects for given fair (exhibition, show) are usually supplemented with logos, pictures and surfaces. Expos is specialized for exhibits so the work is comfortable for stand designer. Expos also generates list of used items including price and weight automatically.