From 1914, when father and son were both in South Africa, through 1948, when they were both in Delhi, the capital of independent India, where Gandhi was slain hours after the last letter, this book reveals - for the most part for the first time - Gandhi's letters to his youngest son, Devadas. Gandhi penned these letters both during the day and at night, while sitting in steamers and trains, with both hands being used to write while the other was used to resting. The letters cover a period of three decades during which the writer went from fighting for Indians' rights in South Africa to being lauded as the nation's father by millions of Indians while also facing opposition from many others.