This 1959 hardcover book titled "The Sleepwalkers" by Arthur Koestler is a first edition, illustrated with a dust jacket, (in poor condition) and published by Macmillan in New York. The book is written in English and belongs to the category of books and magazines, specifically antique and collectible ones.

The book's topic is historical and it was published in the year 1959. The author is Arthur Koestler and the book is a hardback format. It has special attributes like a dust jacket and illustrations. The book is in its original form and has not been modified. The region of publication is Europe and the country of manufacture is the United States. This book is a great addition to any collection and a must-read for those interested in philosophy and metaphysics.