Here's info from a related discussion:
Trade Cloth is the standard hardcover binding. High-circulation books have a higher-quality binding called "library hardcover," but trade cloth is fine for privately owned books.
When you walk into a bookstore, the "hardcover" books you see for sale there for $27.95 or so are all trade cloth books. You don't have need for library binding, as it costs about 50% more, and is almost never sold over the counter in bookstores.
FYI, Live Chat at eBay or half.com would never be able to give you an opinion about what "trade cloth" or any other item descriptor is.
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