J. Gresham Machen’s Things Unseen brings timeless truths to life through a series of radio messages explaining the core doctrines of the Christian faith in clear, compelling language for everyday listeners.

These talks—delivered in 1935 and freshly relevant today—walk through key themes like God’s existence, sin, salvation, and the authority of Scripture. With pastoral warmth and theological clarity, Machen refutes modern unbelief and champions historic Christianity with conviction.

Introduced by Timothy Keller and with a foreword by Sinclair Ferguson, this collection serves as a concise, accessible entry point into Reformed theology. Perfect for personal study or church use, it reminds readers that truth, though often unseen, is never uncertain.