Everybody needs a role model! Discover the true stories of superheroes, rebels, world leaders, action heroes, sports legends, and many more daring dudes, all of whom played their part to make their mark, make a contribution, and make the world a better place.From Abraham Lincoln to Sitting Bull, Stephen Hawking to Galileo, these cool guys had the boldness, bravery and brains to meet the challenges of their day. With a fun design, engaging text, and high-quality photographs, this is the ultimate hero guide and keepsake for the 21st century.