William Paolini has been actively involved in optics and amateur astronomy for 45 years, has published numerous product reviews on major online amateur astronomy boards, and volunteers with public tours at a famous vintage Clark refractor site.   Paolini's professional background is as an officer in the U. S. Air Force and as a computer scientist, holding a Bachelor’s degree in Computer Science and a Master of Science in Education. He has worked for the U. S. Department of Defense, the U. S. Department of Commerce, the Federal Trade Commission, the Federal Reserve, the World Bank, and a variety of commercial corporations in the information technology, information technology security, and telecommunications industries. Paolini has been observing as an amateur astronomer since the mid-1960's, grinding mirrors for homemade Newtonian telescopes during the 1970's and eventually owning, using, and testing several hundreds of eyepieces in a wide variety of telescopes from achromatic and apochromat refractors to Newtonian, Maksutov-Cassegrain, and Schmidt-Cassegarian designs. Today he enjoys observing from his suburban home west of Washington, D. C., where his primary amateur astronomy pursuits are lunar, planetary, bright nebula, open cluster, and globular cluster observing.

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• Preface.- Part I: Background.- Chapter 1: Introducing the Astronomical Eyepiece.- Chapter 2: Choosing Eyepieces and Observing Strategies.- Chapter 3: Eyepieces for Celestial Targets and Accessories.- Chapter 4: Popular Eyepieces by AFOV Class.- Chapter 5: Advice from the Amateur Astronomer Community.- Part II: Desk Reference of Astronomical Eyepieces.- Chapter 6: How to Use This Guide.- Chapter 7: Agena to Docter.- Chapter 8: Edmund Scientific to Nikon.- Chapter 9: Olivon to Surplus Shed.- Chapter 10: Takahashi to Zooming Eyepieces.- Appendix A: Formulas and Optical Design Data.- Appendix B: Eyepiece Performance Classes.- Appendix C: Glossary of Terms.- Index.