Find out how man’s best friend helped win both world wars with the National Canine Defence League’s Dogs in War pack for 11 to 14-year-olds. Containing official war-time posters, photographs and information drawn from NCDL’s 109-yar archive and other sources, it covers such topics as trench warfare, air raids and propaganda. Tel: 0870 333 0432 or write to: Dogs in War PR, NCDL Education Programme, PO Box 6000, Tockwith, North Yorkshire YO26 7YD.