Urban planning legend and former Toronto resident Jane Jacobs would have turned 100 today. Her 1961 book, The Death and Life of Great American Cities, remains one of the most influential works on urban planning.

Jacobs, who died in 2006, made her name in the U.S. but lived in Toronto in the late 1960s.

Through her writing and activism, she changed the way many of us think about the places we live.

Google is celebrating Jacobs with a Google Doodle that appears on its home page today.