Modernism is now a century old, and its consequences are all around us, built into our everyday lived environments. Its place in Britain's history is fiercely contested, and its role in our future is the subject of ongoing controversy - but modernist buildings have undoubtedly changed our cities, politics and identity forever. In this book, Owen Hatherley applauds the ambition and explores the significance of this most divisive of architectures, travelling from Aberystwyth to Aberdeen, from St Ives to Shetland, in search of our most important and distinctive modern buildings.