The best book on dramatic writing

By my lights, Yves Lavandier's Writing Drama is the best book on dramatic writing. Unfortunately this book is not available at Amazon except in a much over-priced "collector's" edition, even though it is readily available from European booksellers (order page). As a result, this book may not be as well know among American screenwriting students as it should be. This book is comprehensive and clear and does not try to reinvent the wheel, bringing under single cover the accepted wisdom of the principles of dramatic writing. Very highly recommended.