The Grand Design - Stephen Hawking, Leonard Mlodinow
The Hidden Reality - Brian Greene
Galaxies in the Universe - L. S. Sparke, J. S. Gallagher, III
Physics for Scientists and Engineers - Paul A. Tipler, Gene Mosca
Dark Matters – Percy Seymour
Dark Cosmos – Dan Hooper
Companion to Cosmology – Andrew Liddle, Jon Loveday
Cosmology: A Very Short Introduction – Peter Coles
Foundations of Modern Cosmology – John F. Hawley, Katherine A. Holecomb
The State of the Universe – Pedro G. Ferreire
Lightcurve Photometry and Analysis – Brian D. Warner
AstroFAQs Questions Amateur Astronomers Frequently Ask - Stephen F. Tonkin
Astronomy - Dinah L. Moche Exploration of the Universe - D. Morrison, S. C. Wolff
Math for Amateur Astronomers - James H. Fox
Observe the Herchel Objects - Ancient City Astronomy Club
Globular Clusters - Longmont Astronomical Society
The Story of the Astronomy - Patrick Moore
The Planet Observers Handbook - Fred W. Price
Guide to Observing and Discovering Comets - David Levy
The Physics of the Interstellar Medium - J. E. Dysoni D. A. Williams
Dictionary of Astronomy - Oxford
Deep Time - David Darling
Halley's Comet - Peter Wragg
Uranometria 2000.0 - William Bell, Inc.
The Hatfield Photographic Lunar Atlas - Jeremy Cook
Manual for Visual Observing of Variable Stars - AAVSO
Messier Objects - K. Machin, S Wheatley
Observe and Understand the Sun - Edited by Richard E. Hill
Space the Final Frontier? - Giancarlo Genta, Michael Rycroft
The Extravagant Universe - Robert P. Kirshner
The New CCD Astronomy - Ron Wodaski
An Introduction to Astronomical Photometry Using CCDs - W. Romanishin
Moon Observer's Guide - P. Grego
Asteroids - C. Peebles
CCD Astrophotography - A. Stuart
David Levy's Guide to Variable Stars - D. Levy
Observing Variable Stars, Novae and Supernovae - G. North
The Quest for Comets - D. Levy
Autostar CCD Photometry - J. Hopkins, G. Lucas