The fun has changed. It has become a serious matter. Its deep and constantly changing links with the transformations of lifestyles, social behaviors, with the laws of the market, the fluctuations of the economy and their influence on the availability of spending, make this a sector in continuous mutation. Design, like the entire design culture, are primary actors in this evolution, called into question not only by the growing aestheticization of everyday life, which informs spaces and objects, but above all by the radical transformation of the ways and times of use of entertainment places, which requires new destinations of spaces, and structures, materials, technologies and furnishings more suited to new public flows and new socialization needs, of comfort consumption. The main feature, chromosomal we can say, of this sector is the strong relationality of the places where products and services are consumed. The bar, the restaurant and the hotel: they are places of strong relationship between customers and local staff. We know that creating a concept of a restaurant is much more than putting yourself in the hands of an architect to redesign the furnishings, but it means creating a commercial idea from scratch, which takes into account the characteristics of the entrepreneur, his local competition, the evolution of consumption, then transmitting them in an offer of: product, service, current price and in the design of the venue.