The Quarto Group, Inc., along with its subsidiaries, conducts an international business, whose principal activity is as a publisher of illustrated non-fiction books in co-edition and under its own imprint, for both adults and children. The Company operates in two business segments: co-edition publishing and publishing. The Company's subsidiaries include Quarto Publishing plc, Quarto Inc., Western Screen and Sign Limited, Quarto Magazines Limited, Regent Publishing Services Limited and Apple Press Limited. The Company creates over 600 adult and children's books a year, which are sold into 35 countries and in 25 languages. 

http://www.quarto.com/