These books are meant to be enjoyed through reading. When you're done with a reading session, close the book gently to keep the binding tight. Store them in a dry place away from direct sunlight to prevent further darkening of the text blocks. If the dust jackets get dirty, you can use a soft, dry cloth to gently wipe them. Be careful with the dust jacket of 'My Cousin Rachel' as it has chips and tears, so handle it gently to avoid more damage.