The book chronicles Abraham Lincoln's life during his formative years in Illinois. It details his rise from humble beginnings to becoming a prominent figure in Illinois politics, culminating in his election to the presidency. The narrative explores his legal career, his family life, and his evolving views on slavery and national issues.

Carl Sandburg's multi-volume biography of Abraham Lincoln is a monumental work of American letters. This particular volume, focusing on Lincoln's prairie years, is recognized for its detailed narrative and evocative prose. It is often cited for its comprehensive portrayal of Lincoln's personal and political development leading up to his presidency. The work is generally regarded as a significant contribution to Lincoln scholarship, offering deep insight into the man and his times.