Over his lifetime, C. S. Lewis wrote thousands of letters in which he offered his friends and acquaintances advice on the Christian life, signing each one with a heartfelt and familiar, “yours, Jack.”

We took some of the best spiritual guidance from those many letters and feature it in one hardcover book, aptly titled Yours, Jack. For a limited time in the U.S., this book is available at a special price on CSLewis.com.