Here is my offering , I may add reasons why later if time permits , these are my top 100 Christian books.
1.The Soverignty Of God ...A W Pink
2. Eternal Security ... A W Pink
3. The Great Debate ... Alan Sell
4. Studies in the scriptures AW Pink
5. Pilgrims Progress .. John Bunyan
6. Commenting and Commentries ... C.H. Spurgeon
7. Outlines of Theology .. A A Hodge
8. Systematic Theology .. L Berkhof
9. Concerning the Eternal Predestination Of God ... John Calvin
10. What Augustine says ... N.L Geisler
11. Treasury Of David ... C H Spurgeon
12. The Atonement of Christ ... Francis Turrettin
13. How Long , O Lord ? : Reflections on Suffering and Evil ... D A Carson
14. The Five Points Of Calvinism ... Steele and Thomas
15 . Five views on Sanctification ... ed. S N. Gundry
16. Spiritual Union and Communion .. A W Pink
17. The Life of A W Pink ... Ian Murray
18. Election and Predestination ... Paul K Jewett
19. For whom did Christ Die ? R B Kuiper
20. Counted Righteous in Christ ... John Piper
21 . Definite Atonement ... Gary D Long
22. Their God is Too Small ... Bruce A Ware
23. Beyond the Bounds: Open Theism and the undermining of Biblical Christianity ... Piper , Taylor Helseth etc.
24. Life Of David ... A W Pink
25 . Deliverance from the Law . J Metcalfe
26. Augustine of Hyppo ... Brown
27. Lion concise book on Christian thought ... Tony Lane
28. The Gospel of John ... A W Pink
29. Christ Freely Offered. ...K. W. Stebbins
30. Whatever happened to Hell ?... John Blanchard
31 . Behold Your God ... Donald Macleod
32. Christ in The Old Testament .. James A Boreland
33. The Charismatics and The Word Of God ... Victor Budgen
34. Gleanings In Genesis ....A W Pink
35. The Doctine Of God ...H. Bavink
36. True Science agrees with the Bible .. Malcom Bowden
37. Healing and Holiness .. C S Storms
38. The Doctrines of Election and Justification .. A W Pink
39. Christ and the Cosmos ... E H Andrews
40. The Bondge Of the Will . Luther
41 . Protestants and Catholics : Do they now agree ? Ankerberg and Weldon
42. Christian Spirituality : 5 views of sanctification ... ed. D Alexander
43. Not A Chance .... R C Sproul
44. Biblical Predestination .. Gordon H. Clark
45. If There is a God , why are there Atheists ? R C Sproul
46. Desiring God . John Piper
47. God doesn't believe in atheists ... Ray Comfort
48. Five views on Law and Gospel ... Moo , Strickland , Keiser , Bahnsen etc
49. The Justification of God , (Romans 9 ) ... John Piper
50. Should infants be baptised ?... T E Watson
51. Holy War .. John Bunyan
52. The Cause Of God and Truth ....John Gill
53. By His Grace and For His Glory (Doctrines Of Grace in Baptist life) ...T J Nettles
54. The Genius of Puritanism .. Peter Lewis
55. Introduction to Puritan Theology ... Hindson
56. Among God's giants ( Piritans )... J I Packer
57. Letters of A W Pink ... pub , BOT
58. God Centred Evangelism .. R B Kuiper
59. The Reformed Doctrine of Predestination....L.Boettner.
60. Studies in Southern Presbyterian Theology....Morton H. Smith
61. Calvin and the Calvinists....Helm, Paul.
62. An Antidote Against Arminianism.... Ness, Christopher (1621-1705).
63. Still Sovereign: Contemporary Perspectives on Election, Foreknowledge, and Grace....eds , Schreiner, Thomas R. and Bruce A. Ware
64. Sermons on Sovereignty....Spurgeon, Charles Haddon (1834-1892).
65. Enchiridion ... Augustine
66. No Other God: A Response to Open Theism... John M.Frame
67. The Normal Christian Life ... Watchman Nee
68. More than Conquerors , W Hendrickson
69. The Bible and The Future ...A A Hoekema
70. Created in God's image .. A A Hoekema
71. Charismatic Chaos . J MacArthur
72. Perspectives on Pentecost: Studies in New Testament teaching on the gifts of the Holy Spirit
... Richard B Gaffin
73. The Puritans ...M L Jones
74. The Golden Treasury of Puritan Quotations . Thomas
75. THE SEVEN SAYINGS OF THE SAVIOR ON THE CROSS....A. W. PINK
76. MAN'S TOTAL DEPRAVITY ...A. W. PINK
77. An Exposition of Hebrews . .. A W Pink
78. The Divine Inspiration Of The Bible ... A W Pink
79. Interpretation Of the Scriptures ... A W Pink
80. The Life Of Elijah... A W Pink
81. The two wills of God ... McMahon
82. The Doctrine of Sanctification ... A W Pink
83. Leviticus ... A Bonar
84. The Christian in Complete Armour .. W Gurnal
85. Reprobation Asserted ... John Bunyan
86. The Saviour's Definite Redemption (Studies in Isaiah 53) W E Best
87. Absolute Predestination...Jerome Zanchius
88. A Body of Divinity ...THOMAS WATSON
89. Commentary on the Whole Bible Matthew Henry, (1706-1721)
90. The Crook in the Lot ... Thomas Boston, (1667-1732)
91. The Attributes of God ... A W Pink
92. The Death of Death .. John Owen
93. A Display Of Arminianism .. John Owen
94. With Christ in the School of Prayer ... Andrew Murray
95. A Defense Of Calvinism ... C H Spurgeon
96. A Primer on Free-will. .. John Henry Gerstner, (1914-1996)
97. Life of Elisha .. A W Pink
98. Calvinism and Evangelical Arminianism: Compared as to Election, Reprobation, Justification, and Related Doctrines. New ed. Harrisonburg, VA: Sprinkle Publications, 1984...Girardeau, John Lafayette (1825-1898).
99. Strong's Concordance - King James Version:. Strong's Lexicon (FULL Search by Strong's word number
100. The Thompson Chain-Reference Study Bible: King James Version, Old and New Testaments