Jack (playing card) Jack (playing card) A jack or knave is a playing card which, in traditional French and English decks, pictures a man in the traditional or historic aristocratic dress generally associated with Europe of the 16th or 17th century. The usual rank of a jack, within its suit, plays as if it was an 11 (that is, between the 10 and the queen). As the lowest face (or "court") card, the jack often represents a minimum standard — for example, many poker games require a minimum hand of a pair of jacks ("jacks or better") in order to continue play. The
International Playing-Card Society International Playing-Card Society The International Playing-Card Society (IPCS) is a non-profit organisation for those interested in playing cards, their design, and their history. While many of its members are collectors of playing cards, they also include historians of playing cards and their uses, particularly card games and their history. The IPCS is based in the United Kingdom, but has members worldwide, especially in Europe. It produces a quarterly journal "The Playing-Card", which publishes articles mostly in English but also in French, German, Italian and Spanish. It also publishes occasional monographs called "IPCS Papers", and issues pattern sheets which systematize types