Caroline Taggart was born in London to Scottish parents, spent most of her childhood in New Zealand, and attended university in Sheffield. Although she considers herself a Londoner, she playfully changes her allegiance, especially during rugby season. After working in publishing for 11 years, she transitioned to freelancing as an editor in 1989, embracing irregular hours and a disdain for early mornings.

In 1994, she began her journey as a freelance editor specializing in adult non-fiction, covering a wide range of topics from wildlife to yoga. Her career took a significant turn after a life-changing evening, when she was asked by Michael O’Mara to write 'I Used to Know That', a book about forgotten school knowledge. This book became a Sunday Times bestseller, selling over 250,000 copies and being translated into multiple languages.

Since its release in 2008, she has published over thirty books. Notably, she is the author of 'The Book of London Place Names' and 'A Slice of Britain: Around the Country by Cake'. Her engaging public speaking skills are highlighted by her record of conducting sixteen interviews in one day on exclamation marks, and eleven interviews in two hours on apostrophes.