For girls growing up in 1950's Britain, Girl was essential reading. Each week there would be another gripping installment of ''Angela Air Hostess"; Lettice Leefe, the greenest girl in the school, would get herself into heaps of trouble; advice column ''Mother Tells You How'' would provide wise words on how to pack for a holiday weekend; ''Concerning You'' would reveal how to choose the most flattering spectacles and the Girl Picture Gallery of lovely paintings to cut out and keep would feature pin-ups of the day such as Humphrey Lyttelton and Princess Margaret, and a variety of delightful woodland creatures and garden birds.