E-Books. They're like traditional, physical books, but electronic.

• EBSCOHost
• Cambridge books online
• SpringerLink (astronomy)
• Wiley Online Library
• Astronomer's Observing Guides
• Astronomy & Astrophysics Library
• Patrick Moore Practical Astronomy

• Astronomical Glossary (CalTech)
• Astronomy/Physics Glossary (University of Oregon)
• Dictionary of Astronomy
• Cambridge Illustrated Dictionary of Astronomy (print)
• Dictionary of Geophysics, Astrophysics, and Astronomy

• Encyclopedia of Astronomy and Astrophysics
• Astronomy Encyclopedia
• Encyclopedia of Spectrometry and Spectroscopy
• Encyclopedia of Cosmology

• Philip's Atlas of the Universe
• Concise Catalog of Deep-Sky Objects

• Handbook of Space Astronomy and Astrophysics
• Handbook of Practical Astronomy
• Handbook of CCD astronomy (print)
• The WSPC Handbook of Astronomical Instrumentation

Most recent edition listed. To see all editions held by the Libraries, click on "See all versions" in the Library Search record.

• Astronomy Today (Chaisson): 8th ed.
• Observer's Handbook (RASC)
• To Measure The Sky (Chromey)
• Introduction to Modern Astrophysics (Carroll & Ostie): 2nd ed.
• Observing the Universe (Norton, ed.)
• Observational Astronomy (Birney, Gonzalez, & Oesper): 2nd ed.
• Digital Image Processing (Gonzalez & Woods): 3rd ed.