I'm looking for a book about...

People often ask if I have recommendations for books about certain topics. I started putting together a list and came up with 50. Each of these books is relatively easy to understand and hits on important topics.  I have included a number of topics. What did I miss?

1. Addiction--Grace in Addiction, John Zahl
2. Adoption--Adopted for Life, Russell Moore
3. Anxiety--Running Scared, Ed Welch
4. Apologetics: Content--Christian Apologetics, Doug Groothuis 
5. Apologetics: Method--Tactics, Greg Koukl
6. Beauty--Notes from the Tilt-a-Whirl, ND Wilson
7. Bible--ESV Legacy Bible
8. Biography--Confessions, Augustine of Hippo
9. Calvinism--Chosen by God, RC Sproul
10. Character--The Good and Beautiful Life, James Bryan Smith
11. Compassion--Generous Justice, Tim Keller
12. Counsel (providing)--Soul Talk, Larry Crabb
13. Creationism--More than a Theory, Hugh Ross
14. Creativity--World Enough and Time, Christian McEwen 
15. Decision Making--Just Do Something, Kevin DeYoung
16. Depression--Christians Get Depressed Too, David Murray
17. Discipleship--Conformed to His Image, Ken Boa
18. Emotions--Cry of the Soul, Dan Allender and Tremper Longman
19. Fasting--Hunger for God, John Piper
20. Gender--Fully Alive, Larry Crabb
21. Gentleness--The Allure of Gentleness, Dallas Willard 
22. Gospel--The Gospel, Ray Ortlund
23. Grace--Extravagant Grace, Barbara Duguid
24. Holiness--Holiness by Grace, Bryan Chapell
25. Holy Spirit--Jesus Continued..., JD Greear 
26. Interpreting the Bible--Dig Deeper, Niles Benyon
27. Islam--Seeking Allah, Finding Jesus, Nabeel Qureshi 
28. Leadership--Heart of a Servant Leader, Jack Miller
29. Marriage--What Did You Expect?--Paul Tripp
30. Masculinity--Men of Courage, Larry Crabb
31. Mental Health--Grace for the Afflicted, Matthew Stanford
32. Neuroscience--Anatomy of the Soul, Curt Thompson
33. Other-Centeredness--A Different Kind of Happiness, Larry Crabb
34. Parenting--Give the Grace, Elyse Fitzpatrick and Jessica Thompson
35. Pastoring--The Pastor's Justification, Jared Wilson
36. Poetry--The Jubilee, John Blase
37. Prayer--Whole Prayer, Walter Wangerin
38. Psalms--A Long Obedience in the Same Direction, Eugene Peterson
39. Preaching--Preaching, Tim Keller
40. Relationships--Everybody's Normal Until You Get to Know Them--John Ortberg
41. Relativism--Relativism: Feet Firmly Planted in Midair--Frank Turek and Greg Koukl
42. Revelation--Reversed Thunder, Eugene Peterson
43. Sexual Abuse--Rid of my Disgrace, Justin and Lindsey Holcomb
44. Shame--Shame, Interrupted, Ed Welch
45. Sin--Why Sin Matters, Mark McMinn
46. Spirituality--True Spirituality, Francis Schaeffer
47. Suffering--A Grace Disguised, Jerry Sittser
48. Trinity--Delighting in the Trinity, Michael Reeves
49. Union with Christ--Union with Christ, Rankin Wilbourne
50. Worldview--Total Truth, Nancy Pearcey