Caroline Marland, the Guardian’s trailblazing former managing director who broke glass ceilings and helped others do the same, has died at the age of 80. Marland, who became Fleet Street’s first female advertising director, was a pioneer in spotting the potential of the classified ad market for newspapers. She rose to the top of the male-dominated newspaper industry and championed other women throughout her career. She spent 24 years at the Guardian, departing in 2000 . Campaign magazine said her career was unusual in being both high-profile and “barely seasoned with controversy or feud”. Marland, born in Dublin, was the eldest of three children. Her career in newspapers began in 1969, selling ads over the telephone for the Yorkshire Post – a relatively recent innovation at the time. After showing skill and charm, she found herself in demand on Fleet Street, accepting a job at the Times. Marland in 1979. As a classified ad manager, she shifted the Guardian’s reputation among advertisers.…