The universe beyond our own has been an object of scientific inquiry and a preoccupation of avid stargazers from antiquity up to the present day, and this preoccupation has evolved into a complex field in which mysteries are unlocked and discoveries are made on a constant basis. The Astronomy Encyclopedia covers the full width and breadth of the discipline and includes the latest and most important advances.

The third edition of the American Heritage Dictionary is a beauty--2,134 pages --containing a lexicon of more than 200,000 entries, plus an appendix of Indo-European roots for etymology enthusiasts. The crisp white pages and sharp black print are easy on the eyes, the drawings and pictures (nearly 4,000 in all) are a delight, and along with the lucid, erudite definitions are 4,000-plus quoted illustrations of usage from the likes of Shakespeare, Melville, and Updike. Though it's the chosen reference of editors, it's more than a mere tool of the trade--it's a luxurious linguistic experience.

Surveying the major facts, concepts, theories, and speculations that infuse our present comprehension of time, the Encyclopedia of Time: Science, Philosophy, Theology, & Culture explores the contributions of scientists, philosophers, theologians, and creative artists from ancient times to the present. By drawing together into one collection ideas from scholars around the globe and in a wide range of disciplines, this Encyclopedia will provide readers with a greater understanding of and appreciation for the elusive phenomenon experienced as time.