Charlotte Higgins, the Guardian's chief culture writer, steps behind the polished doors of Broadcasting House and investigates the BBC. Based on her hugely popular essay series, this personal journey answers the questions that rage around this vulnerable, maddening and uniquely British institution. Questions such as, what does the BBC mean to us now? What are the threats to its continued existence? Is it worth fighting for?

Higgins traces its origins, celebrating the early pioneering spirit and unearthing forgotten characters whose imprint can still be seen on the BBC today. She explores how it forged ideas of Britishness both at home and abroad. She shows how controversy is in its DNA and brings us right up to date through interviews with grandees and loyalists, embattled press officers and high profile dissenters, and she sheds new light on recent feuds and scandals.

This is a deeply researched, lyrically written, intriguing portrait of an institution at the heart of Britain.