I went to DC this weekend and toured many of the art galleries. The American Art and Portrait Gallery really stuck out to me. They had portraits/paintings of important people from the Revolutionary War, to The Civil War, US Government figures, Mark Twain, and many others. I like seeing an image of the person and the bio provided; the museum had a quick read bio to the side of the painting. Are there are any books out there that cover this type of thing? What is a good comprehensive book? Open to all ideas.