The first three editions of Night Watch sold more than 600,000 copies, making it the top-selling stargazing guide in the world for the last 20 years. The key feature of this classic title is the section of star charts that are cherished by backyard astronomers everywhere. Each new edition has outsold the previous one because of thorough revisions and additional new material.

Night Watch has been acclaimed as the best general interest introduction to astronomy. The fourth edition has revisions in every chapter, including: - The famous charts, ideal for stargazers using a small telescope or binoculars - A complete update of the equipment section, including computerized telescopes - An enlarged photography section, including how-to instructions for using the new generation of digital cameras for astronomical photography, both with and without a telescope - The tables of future solar and lunar eclipses, planetary conjunctions and planet locations, updated through 2018.

This edition includes for the first time star charts for use in the southern hemisphere. There are also dozens of new photographs throughout the book that show the latest thrilling discoveries made by current space observatories and probes.