De Organographia was first published in 1618 and has long been an essential tool for musicologists. Over the last dozen years, with the revival of interest in Renaissance and early baroque music, it has begun to enjoy wider appeal as growing numbers of instrument makers and players base their own work on the documentation in this book. This edition fulfills the need in the current early music revival for a new translation of this important work. The editor's commentaries will guide the reader through some of the more technical passages.