How do you draw Celtic knotwork? What are the secrets of keys? Are there tricks for drawing Celtic spirals? What do these mysterious patterns actually mean? Who drew them? Where did they come from? In this exquisite pocket book, author and artist Adam Tetlow shows us the practical tricks of the trade and the hidden principles behind the ancient magical science of Celtic artwork. With examples from both early and later periods, illustrations by the author and rare engravings. WOODEN BOOKS are small but packed with information. 'Fascinating' FINANCIAL TIMES. 'Beautiful' LONDON REVIEW OF BOOKS. 'Rich and Artful' THE LANCET. 'Genuinely mind-expanding' FORTEAN TIMES. 'Excellent' NEW SCIENTIST. 'Stunning' NEW YORK TIMES. Small books, big ideas.