Observing the Moon is a definitive work, written as a reference book for anyone seriously interested in the Moon and its geology. It is of course a perfect companion for practical observers. Detailed and extensively illustrated chapters catalog ail the interesting lunar features visible in modest telescopes. They are preceded by a crash course in modern lunar geology - based on the vast amount we have learned during and since the Apollo missions - and are followed by chapters on photographic and CCD imaging, drawing and lunar topography. A CD-ROM accompanies this book and contains an atlas of lunar images and much more. The CD-ROM requires a PC running Windows 3.1 or higher, a minimum of 16MB (Windows 3.1), 64MB (Windows 95 up) of memory and a 2x or faster CD-ROM player.