Bavinck The Holy Spirit’s Work of Calling and Regeneration is from the fourth and final full volume of Herman Bavinck’s Reformed Dogmatics
Austin-Sparks was formerly a Baptist, and he got caught up in the Holiness Revival going on at the time. He was friends with Watchman Nee and Jesse Penn-Lewis. These three are big names and leaders in the Holiness movement. While I personally do not agree with everything going on in that movement, the movement itself produced an emphasis on being holy which few other groups outside of it made much attempt at all. There is a lot of gems within that movement and their writings.
In this two-book work (part 1 and part 2) on God’s Reactions to Man’s Defection, Austin-Sparks looks at man’s defections or sin. While the normal classification of this book would be Harmartiology (Doctrine of Sin) Austin-Sparks take on this is that “God’s Reactions” focus on the church concept to “fix” man’s sin concepts.