Before serving as America's 31st President from 1929 to 1933, Herbert Hoover had achieved international success as a mining engineer and worldwide gratitude as "The Great Humanitarian" who fed war-torn Europe during and after World War I. Learn more about the 31st President of the United States. Learn more about Herbert Hoover's spouse, Lou Henry Hoover. This book also features some of his great quotes that you will find inspiring.