The period leading up to the Civil War was one of great change. Congress divided itself between Northerners and Southerners, citizens on the frontier took up arms against one another, and movements for secession and abolition were more urgent than ever. In The Hammer and the Anvil , the award-winning author Dwight Jon Zimmerman and the renowned artist Wayne Vansant vividly depict the tumultuous time through the lives of two men who defined it: Frederick...