More than any book I have read on the subject, The Call recognizes the radical nature of Christianity and challenges and inspires readers to not settle for anything less. Mr. Guinness' main influences in thinking and writing on the subject are Dietrich Bonhoeffer and Oswald Chambers, and so this book could also have been titled "The Cost of Discipleship" or "My Utmost for His Highest".
This book does not give trite how-to's on what it means to be a follower of Christ, but rather examines the Biblical mandate to surrender ourselves to God's call in all aspects of our lives: in everything we do, in all that we own, and in who we are, all the time.
Mr. Guinness has obviously spent years thinking about and studying this subject (including prayerfully considering his own call), so the book is written on a very personal level. Mr. Guinness also peppers each chapter with relevant life stories from historical, literary and artistic figures to illustrate his points and show in what ways "the rubber meets the road".
Finally, I appreciate his suggestion to read the book as a devotional - one chapter a day, instead of huge chunks at a time. This ensures enough time for the reader to reflect on the profound points made in each chapter.
When I finished reading this book, I decided I need to read it every few years. This book should be a classic!