Certain events such as wine tastings cater to people who consider themselves gourmets and foodies. It was called "a mecca for cooking fans, gourmets, foodies, cooking stars and cooking hobbyists". It is generally geared towards gourmets or "foodies". An example of such a group is gourmets, persons who participate in gastronomy. Gourmets are taste and quality oriented consumers. In 1967, Evans co-authored a book with expert gourmet Graham Kerr, "The Galloping Gourmets". Gastronomos online calls the same dish a "tasty dynamite for gourmets". It is a highly valued olive among gourmets. Gourmets appreciate its oysters, which are considered to be of extraordinary size and quality. Over time, more and more Greeks presented themselves as gourmets. Rounds of white cheese from Ocosingo are popular with gourmets in various parts of Mexico. By 1900 Commander's Palace was attracting gourmets from all over the world. The Viktualienmarkt developed from an original farmers' market to a popular market for gourmets. Gourmets prefer to work with produce that is in season and locally sourced. Less but better is a concept also commonly used by gourmets.