The southern Arabian desert, a quarter million square miles of sand (650,000 square kilometers), is now a place of oil wells and Land Rovers, but before the 1950s it was still known as the Empty Quarter, a place you entered only on camel and only as an Arab. Only a few white men had ever seen it, much less crossed it. From 1945 to 1950, the British Thesiger crossed it twice, living with the Bedouin, sharing their hard lives. His book is the classic of desert exploration, a door opening on a vanished feudal world. It is a book of touches, little things-why the Bedouin will never predict the weather ("since to do so would be to claim knowledge that belongs to God"), how they know when the rabbit is in its hole and can be caught. It is written with great respect for these people and with an understanding that acknowledges its limits. With humility, that is, which is appropriate. Fail the humility test, and the desert will surely kill you.

Sir Wilfred Patrick Thesiger (1910–2003) was a British travel writer born in Addis Ababa in Abyssinia (now Ethiopia). Thesiger is best known for two travel books: Arabian Sands (1959), which recounts his travels in the Empty Quarter of Arabia between 1945 and 1950 and describes the vanishing way of life of the Bedouins, and The Marsh Arabs (1964), an account of the traditional peoples who lived in the marshlands of southern Iraq.