Duplex Moon Atlas
Advanced Observing: Visual Mysteries of the Universe, Vol. 3
Advanced Observing: Visual Mysteries of the Universe, Vol. 2
Advanced Observing: Visual Mysteries of the Universe, Vol. 1
Annals of the Deep Sky Volume 11
Magnificent Aurora
Annals of the Deep Sky Volume 10
Annals of the Deep Sky Volume 9
Planetary Programs & Tables (BASIC) CD
Planetary Programs & Tables (NEWCOMB) CD
Lunar Tables & Programs (FORTRAN) CD
Lunar Tables & Programs (PASCAL) CD
Planetary Programs & Tables (Hickley-Bresim) CD
Planetary & Lunar Ephemerides (JPL) CD
Cannon of Lunar Eclipses (1500 B.C.-A.D. 3000) CD
Astronomical Photometry CD
Telescope Optics - A comprehensive Manual for Amateur Astronomers
Star Testing Astronomical Telescopes, 2nd Edition
Star Clusters
Planetary Programs and Tables -4000 to +2800
Night Sky Observer's Guide Volume 4: The Glories of the Milky Way to –54°
Night Sky Observer's Guide Volume 3: The Southern Skies
Night Sky Observer's Guide Volume 2: Spring and Summer
Introduction to Lens Design