Annals of the Deep Sky – A Survey of Galactic and Extragalactic Objects is by far the most up-to-date and comprehensive observing guide available today, featuring in-depth astrophysical profiles of the major stars and deep-sky objects by constellation. Volume 2 covers Aquila, Ara, Aries, Auriga, Boötes, and Caelum, and includes a 72-page Essential Terminology Glossary.