This is a story of change, mystery and the importance of imaginary characters in our lives. Able to evolve and adapt more radically than any other fiction, Doctor Who has acted as a mirror to more than six decades of social, technological and cultural change while always remaining a central fixture of the British imagination. In Exterminate / Regenerate, John Higgs invites us into his TARDIS on a journey to discover how ideas emerge and survive despite the odds, why we are so addicted to fiction, and why this wonderful wandering time traveller means so much to so many...

Poet, artist, visionary and author of the unofficial English national anthem 'Jerusalem', William Blake is an archetypal misunderstood genius. In this radical new biography, we return to a world of riots, revolutions and radicals, discuss movements from the Levellers of the sixteenth century to the psychedelic counterculture of the 1960s, and explore the latest discoveries in neurobiology, quantum physics and comparative religion to look afresh at Blake's life and work - and, crucially, his mind. Taking the reader on wild detours into unfamiliar territory, John Higgs places the bewildering eccentricities of a most singular artist into context and shows us how Blake can help us better understand ourselves.

Higgs takes us on a refreshingly eclectic journey through the knotty history of the strangest of centuries. In the company of radical artists, scientists, geniuses and eccentrics, he shows us how the elegant, clockwork universe of the Victorians became increasingly woozy and uncertain; and how in the twentieth century we discovered that our world is not just stranger than we imagine, but 'stranger than we can imagine'.