The Ptolemaic system of the universe, with the earth at the center, had held sway since antiquity as authoritative in philosophy, science, and church teaching. Following his observations of the heavenly bodies, Nicolaus Copernicus (1473-1543) abandoned the geocentric system for a heliocentric model, with the sun at the center. His remarkable work, On the Revolutions of Heavenly Spheres, stands as one of the greatest intellectual revolutions of all time, and profoundly influenced, among others, Galileo and Sir Isaac Newton.
Rubbing on gilt cover, text block is flawless. 
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Features include:
 
- Fully bound in genuine leather.
- 22kt gold deeply inlaid on the “hubbed” spine.
- Superbly printed on acid-neutral paper that lasts for generations.
- Sewn pages – not just glued like ordinary books.
- Satin-ribbon page marker.
- Gilded page ends.
- Bound in the USA. Imported materials.
- Rigorous inspection at every stage ensures adherence to our exacting standards.
- Superb craftsmanship and commitment to quality.