A Brief History of Time

Stephen Hawking's landmark lay-science book explains cosmology — the Big Bang, black holes, time's arrow, and the search for a unified theory — without a single equation, relying on analogy and clear prose to make the structure of the universe legible to a general reader. First published in 1988, it has sold over 10 million copies in what Hawking himself called an attempt to 'make the ideas of physics accessible to everyone.'

Richard Branson lists A Brief History of Time among his 65 lifetime reading recommendations on Virgin.com — one of only two popular-science cosmology books (along with Carl Sagan's Cosmos) on that list. For a founder, the value is not the astronomy: it is watching how a first-rate mind reasons from first principles about questions he admits he cannot answer. Hawking does not build an argument on authority; he starts from what is observable and walks the reader forward, step by step, through inference and counter-inference. That mode of reasoning — beginning with what you know for certain, constructing a chain of logic, and clearly marking where the evidence stops — is the same habit a founder needs when reasoning about markets, product decisions, and strategy. The book models being comfortable at the edge of what is known without pretending the unknowns away.