The Library of Congress has an online exhibit featuring Herblock, running until May 1, 2010:
The Library of Congress celebrates Pulitzer Prize-winning cartoonist Herb Block (1909–2001) with a look at his remarkable seventy-two-year career (1929–2001). Herblock! includes eighty-two original cartoon drawings, primarily selected from the Library’s extensive Herbert L. Block Collection. These cartoons represent Block’s ability to wield his pen effectively and artfully, using it to condemn corruption and expose injustice, inequality, and immorality on topics including the Great Depression, the rise of fascism and World War II, communism and the Cold War, Senator Joseph McCarthy, race relations, Richard Nixon, the Reagan era, the 2000 election, and more.