Most Expensive Books in the World (Ranked)

Summa Theologica by Thomas Aquinas - $180,000 (1467)

24. Summa Theologica by Thomas Aquinas – $180,000 (1467)

Summa Theologica is a comprehensive collection of the most crucial teachings of the medieval Catholic Church. Written by Thomas Aquinas, the book came out in three volumes and this particular piece, the book’s second volume, was published as far back as 1467!

The main message in the book is to talk about how humans and God are related to each other, and how Catholicism helps bridge the path to meeting the divine. Considering the historical and religious importance of this edition, it is valued at $180,000.

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