As a term, ‘rare books’ is bandied about so frequently that it cannot be said to be very precise: anything from the merely unusual to the unfamiliar to the unique. It is a convenient portmanteau term, whether for journalists, the book trade, librarians, book collectors or historians of the book more generally.
The Cambridge Book Club presents: A Q&A with Stephen J. Stein
The Voynich Manuscript: The Most Secretive Book in History
History of printing - Wikipedia
Rare editions of famous books worth a fortune
The History of Children's Books - The Atlantic
Fifteenth Century - Heavenly Craft: The Woodcut in Early Printed
A History of the Cambridge University Press, 3 Volume Set
NINETEEN EIGHTY-FOUR (1984) 1949, First Edition, First
The Curious Incident of the Dog in the Night-Time: Haddon, Mark
The Last Devil to Die (Thursday Murder Club, #4) by Richard Osman
The market for illuminated choir books
Today in History - May 15