The performances on a concert tour are booked by the act’s booking agent, who works with concert promoters to place the act in suitable venues and festivals in a time frame and territory agreed with the act’s management. Individual concert promoters negotiate the financial, technical and hospitality requirements of the artist and make an offer to the booking agent for the show. The tour is announced and tickets put on sale when agreement is reached on the tour dates. As modern concert touring involves complex financial, legal and technical arrangements, the booking agent or artist manager hire a tour manager to organize the logistics, personnel, communications and schedule. Concert tour managers are usually freelancers working on a tour-by-tour basis.