Astronomy I

Earth, Sky, and Planets

2003

Astronomy II

Stars, Galaxies, And The Universe

2004

Extreme Stars

At the Edge of Creation

2001

Stars

1992

Stars and their Spectra

An Introduction to the Spectral Sequence

1989

The Cambridge Encyclopedia of Stars

2006

The Ever-Changing Sky

A Guide to the Celestial Sphere

1996

The Hundred Greatest Stars

2002

The Little Book of Stars

2000

The Modern Scholar

Heavens Above: Stars, Constellations, and the Sky

2007

Vault of the Heavens

Exploring the Solar System's Place in the Universe

2003