Yet, during these broken and irregular periods, he had developed one of the most valuable assets any man can have, even from a university education: a love of knowledge and a thirst for learning.' A passion project of Carnegie's, Lincoln the Unknown is a moving portrait of one of the most renowned American politicians in history. Inspired by Carnegie's fascination with the former president, this definitive biography of Abraham Lincoln covers his extraordinary life and career. It recounts his childhood growing up on a farm, walking miles and miles to borrow books to quench his passion for reading; the tragic loss of his first love and subsequent strained marriage; rubbing shoulders with politicians in the White House for the very first time; how he rose to become president and his war in the South. Written in the very spot in Illinois where Lincoln once dreamed and hustled, Lincoln in the Unknown is a compassionate and comprehensive biography of one man's unrelenting desire for a better, more enlightened life and nation. Dale Carnegie (1888 – 1955) was an American writer. A self-improvement advocate, Carnegie worked in corporate training, offering courses on public speaking and interpersonal skills. He is famed for his runaway bestseller, How to Win Friends and Influence People, which remains hugely popular to this day.