Eisenhower, Susan B. Anthony, Saeagawea, Native American, and Presidential dollar coins are the modern versions of America's classic silver dollar. The U.S. Mint produces them by the millions, in innovative formats and with fascinating new designs every year. Hobbyists research their history, build visually appealing sets, compete in registries, and study errors and interesting the varieties. Author Q. David Bowers, the "Dean of American Numismatics,"...