Diane and Jon Sutherland are professional writers. They have written a wide variety of titles, spanning household hints, travel, children’s, military history and education. They have won several literary prizes, including New York Libraries’ Best of Reference and Booklist Editors’ Choice Award.     Liz Keevill and Kevin Eyres are professional writers and journalists. Liz spent many years as a consumer journalist on Good Housekeeping and Ideal Home magazines and has written books on interior design, furnishings, and general housekeeping matters. Kevin writes on travel, the arts and interior lighting design as well as being a commercial copywriter. They are both interested in anything that reduces the toxic content of everyday things. Maria Costantino has written such titles as The Handbook: Household Hints & Tips, DIY Encyclopedia, First Aid Pocket Guide and many other books on food, drink, art, design and fashion. She teaches Historical, Critical and Theoretical Studies at several universities in England.