- harden off,
- harden one's heart,
- harden up
Origin of hardcover
Examples from the Web for hardcover
Knopf has sold more than 400,000 copies, and the book has never been out of print in hardcover or paperback.‘The Power Broker’ Turns 40: How Robert Caro Wrote a Masterpiece|Scott Porch|September 16, 2014|DAILY BEAST
He wrote a few more paperback originals, two of them westerns, then sold The Moonshine War to Doubleday in hardcover.
If a myth is built around an author, her most intimate thoughts become worthy of a hardcover.
The e-book, paperback, and hardcover were merged, for young adult and middle grade.Pamela Paul Talks Future of New York Times Book Review|Steve Kettmann|April 12, 2013|DAILY BEAST
Didion will soon publish her book in hardcover and has already benefited from his review.
This book is available in both a hardcover and paperback edition.The Loom of Youth|Alec Waugh
A list of all obtainable addresses of the publishers of hardcover books mentioned in the Checklist.Checklist|Marion Zimmer Bradley
Solo girls with hardcover sketch books and vintage clothes home-tailored to a nice fit.Someone Comes to Town, Someone Leaves Town|Cory Doctorow