Standard Deviation | Rating | Title |
| 1.271 | 3.51 | The Purpose Driven Life by Rick Warren |
| 1.229 | 3.65 | Nave's Topical Bible by Orville J. Nave |
| 1.224 | 3.06 | Dr. Atkins' New Diet Revolution by Robert C. Atkins |
| 1.197 | 3.64 | She Said Yes: The Unlikely Martyrdom of Cassie Bernall by Misty Bernall |
| 1.195 | 3.82 | The Holy Qur'an (Abdullah Yusuf Ali, 1934) by Abdullah Yusuf Ali |
| 1.187 | 4.3 | The Holy Bible: New International Version (NIV) by Bible |
| 1.183 | 3.64 | Wild at Heart: Discovering the Secret of a Man's Soul by John Eldredge |
| 1.18 | 4.11 | The Holy Bible: King James Version (KJV) by Bible |
| 1.178 | 3.53 | The Da Vinci Code by Dan Brown |
| 1.17 | 3.58 | The Case for Faith by Lee Strobel |
| 1.148 | 3.65 | The SPEED of Trust: The One Thing That Changes Everything by Stephen M.R. Covey |
| 1.132 | 4.21 | Catechism of the Catholic Church by Catholic Church |
| 1.132 | 3.76 | The Pilgrim's Progress by John Bunyan |
| 1.117 | 3.91 | Why Men Hate Going to Church by David Murrow |
| 1.11 | 3.79 | The Case for Christ: A Journalist's Personal Investigation of the Evidence for Jesus by Lee Strobel |
| 1.109 | 3.6 | Darwin on Trial by Phillip E. Johnson |
| 1.107 | 3.67 | The Five People You Meet in Heaven by Mitch Albom |
| 1.106 | 4.21 | The Book of Common Prayer [1662] by Church of England |
| 1.068 | 3.85 | Saint Francis of Assisi by G. K. Chesterton |
| 1.063 | 3.7 | Robert's Rules of Order by Henry M. Robert |
| 1.06 | 3.83 | Rachel's Tears: The Spiritual Journey of Columbine Martyr Rachel Scott by Beth Nimmo |
| 1.059 | 3.95 | On Killing: The Psychological Cost of Learning to Kill in War and Society by Dave Grossman |
| 1.054 | 3.71 | The 4-Hour Workweek: Escape 9-5, Live Anywhere, and Join the New Rich by Timothy Ferriss |
| 1.052 | 3.93 | Confessions by Saint Augustine |
| 1.051 | 3.59 | Then Sings My Soul: 150 of the World's Greatest Hymn Stories by Robert J. Morgan |
| 1.049 | 3.85 | The Case for a Creator: A Journalist Investigates Scientific Evidence That Points Toward God by Lee Strobel |
| 1.045 | 3.71 | Home to Harmony by Philip Gulley |
| 1.039 | 3.49 | The 80/20 Principle: The Secret to Success by Achieving More with Less by Richard Koch |
| 1.037 | 3.8 | Ecclesiastical History of the English People by Bede |
| 1.03 | 3.85 | The Seven Habits of Highly Effective People by Stephen R. Covey |
| 1.021 | 3.66 | The Mitford Snowmen by Jan Karon |
| 1.018 | 3.83 | The Politically Incorrect Guide to Islam (and the Crusades) by Robert Spencer |
| 1.018 | 3.74 | The Canterbury Tales by Geoffrey Chaucer |
| 1.014 | 3.68 | Her Hand in Marriage: Biblical Courtship in the Modern World by Douglas Wilson |
| 1.012 | 3.94 | The Five Love Languages by Gary Chapman |
| 1.007 | 3.4 | Esther's Gift by Jan Karon |
| 1.004 | 3.83 | Jacob Have I Loved by Katherine Paterson |
| 1.002 | 3.81 | More Than a Carpenter by Josh McDowell |
| 1.001 | 3.59 | The Life and Adventures of Robinson Crusoe by Daniel Defoe |
| 1 | 3.41 | The Big Four by Agatha Christie |
| 0.999 | 3.93 | At Home in Mitford by Jan Karon |
| 0.998 | 3.92 | Great Expectations by Charles Dickens |
| 0.997 | 3.86 | Vine's Expository Dictionary of the Old & New Testament by W. E. Vine |
| 0.989 | 3.39 | Managing the Non-Profit Organization: Principles and Practices by Peter F. Drucker |
| 0.987 | 3.8 | 48 Days to the Work You Love by Dan Miller |
| 0.983 | 3.85 | A History of Christianity, Volume 1: Beginnings to 1500 (Revised) by Kenneth Scott Latourette |
| 0.982 | 3.94 | Adventures of Huckleberry Finn by Mark Twain |
| 0.981 | 3.73 | How the Irish Saved Civilization by Thomas Cahill |
| 0.98 | 4.32 | The Exhaustive concordance of the Bible by James Strong |
| 0.974 | 3.87 | Just Shy of Harmony (Harmony Novels) by Philip Gulley |
| 0.972 | 4.07 | The Diary of a Young Girl by Anne Frank |
| 0.969 | 4.02 | Shepherds Abiding by Jan Karon |
| 0.968 | 3.78 | Upgrade Your Life by Gina Trapani |
| 0.966 | 3.16 | Blog: Understanding the Information Reformation That's Changing Your World by Hugh Hewitt |
| 0.965 | 3.85 | A Manual for Writers of Term Papers, Theses, and Dissertations by Kate L. Turabian |
| 0.964 | 3.75 | Rule of Saint Benedict by Saint Benedict |
| 0.964 | 3.64 | Handbook of Denominations in the United States by Frank S. Mead |
| 0.963 | 3.92 | Foxe's Book of Martyrs by John Foxe |
| 0.963 | 4.12 | Where the Red Fern Grows by Wilson Rawls |
| 0.962 | 4.01 | The Seven Principles for Making Marriage Work: A Practical Guide from the Country's Foremost Relationship Expert by John M. Gottman |
| 0.961 | 3.78 | The Politically Incorrect Guide to American History by Thomas E. Woods |
| 0.96 | 3.65 | Patches of Godlight: Father Tim's Favorite Quotes by Jan Karon |
| 0.959 | 4.08 | Concise Theology: A Guide to Historic Christian Beliefs by J. I. Packer |
| 0.959 | 4.35 | Richard Scarry's Best Storybook Ever! by Richard Scarry |
| 0.959 | 3.99 | The Kingdom of the Cults by Walter Martin |
| 0.956 | 3.59 | Halley's Bible Handbook by Henry H. Halley |
| 0.956 | 3.9 | Surprised by Joy: The Shape of My Early Life by C. S. Lewis |
| 0.954 | 4.04 | The Abolition of Man by C. S. Lewis |
| 0.951 | 4.08 | The Imitation of Christ by Thomas à Kempis |
| 0.945 | 3.97 | Baker Encyclopedia of Christian Apologetics (Baker Reference Library) by Norman L. Geisler |
| 0.945 | 4.02 | The Official Scrabble® Players Dictionary by Merriam-Webster |
| 0.944 | 3.94 | A Common Life by Jan Karon |
| 0.944 | 3.91 | Federal Husband by Douglas Wilson |
| 0.94 | 4.33 | Just Do Something: How to Make a Decision Without Dreams, Visions, Fleeces, Open Doors, Random Bible Verses, Casting Lots, Liver Shivers, Writing in the Sky, etc. by Kevin DeYoung |
| 0.939 | 4.09 | A Christmas Carol by Charles Dickens |
| 0.937 | 4.22 | The Elements of Style by William Jr. Strunk |
| 0.934 | 3.78 | Now, That's a Good Question! by R. C. Sproul |
| 0.928 | 3.85 | The Sling and the Stone: On War in the 21st Century by Thomas X. Hammes |
| 0.927 | 3.73 | The Early Church by Henry Chadwick |
| 0.925 | 2.94 | Civil War Curiosities: Strange Stories, Oddities, Events, and Coincidences by Webb Garrison |
| 0.923 | 4.1 | Here I Stand : A Life of Martin Luther by Roland H. Bainton |
| 0.918 | 4.11 | In This Mountain by Jan Karon |
| 0.917 | 3.87 | Misquoting Jesus by Bart D. Ehrman |
| 0.916 | 4.08 | The Screwtape Letters by C. S. Lewis |
| 0.916 | 3.97 | Manalive by G. K. Chesterton |
| 0.916 | 4.04 | Out to Canaan by Jan Karon |
| 0.915 | 4.14 | Dictionary of the Later New Testament & Its Developments (The IVP Bible Dictionary Series) by Ralph P. Martin |
| 0.913 | 4.26 | Till We Have Faces by C. S. Lewis |
| 0.913 | 3.89 | Just and unjust wars : a moral argument with historical illustrations by Michael Walzer |
| 0.909 | 3.38 | The Last Days According to Jesus by R. C. Sproul |
| 0.907 | 4.13 | Brown-Driver-Briggs Hebrew and English Lexicon by Francis Brown |
| 0.905 | 3.86 | Mansfield Park by Jane Austen |
| 0.902 | 3.86 | Charts of Christian Theology & Doctrine by H. Wayne House |
| 0.899 | 3.98 | How to Read the Bible for All Its Worth by Gordon D. Fee |
| 0.899 | 3.74 | Two Treatises of Government by John Locke |
| 0.897 | 3.84 | The Case for the Real Jesus: A Journalist Investigates Current Attacks on the Identity of Christ by Lee Strobel |
| 0.897 | 3.82 | Rework by Jason Fried |
| 0.896 | 3.88 | The Adventures of Tom Sawyer by Mark Twain |
| 0.894 | 3.88 | Signs and Wonders by Philip Gulley |
| 0.893 | 4.3 | Mere Christianity by C. S. Lewis |