Common Errors and Problems in English

Robert Allen

"The Penguin Writers' Guides" series provide authoritative, succinct and easy-to-follow guidance on specific aspects of written English. Whether you need to brush up your skills or get to grips with something for the first time, these invaluable guides will help you find the best way to get your message...

The Book of Universes

John D. Barrow

This is a book about universes. It tells a story that revolves around a single extraordinary fact: that Albert Einstein's famous theory of relativity describes a series of entire universes. Not many solutions to Einstein's tantalising universe equations have ever been found, but those that have are all ...