Perhaps this is the best way to produce a bitesize biography - from a well researched position but giving the salient facts in a brief and interesting way. It does mean sacrificing 10 pages to endnotes that probably won't be chased up by most. Ian J Shaw covers the ground in 11 chapters with a short preface and a timeline beforehand. The final chapter argues that Gadsby the High Calvinist Baptist pastor is worth studying because he shows that an effective and successful ministry in an urban setting is possible, the primacy of preaching in the ministry and that urgent and earnest preaching should be combined with a warn pastoral heart. We can learn from his theology even though it was defective. Others have spoken highly of him. He was a humble man who gave God the glory. This brief biography is well worth getting hold of.
Bonhoeffer uses a similar phrase 'worldly Christianity'. It's J Gresham Machen that I want to line up most closely with. See his Christianity and culture here. Having done commentaries on Proverbs (Heavenly Wisdom) and Song of Songs (Heavenly Love), a matching title for Ecclesiastes would be Heavenly Worldliness. For my stance on worldliness, see 3 posts here.