Roman Numerals I to MM: Liber De Difficillimo Computando Numerum

With a farm of pigs as his abacus, Arthur Geisert uses elements of a search and count game to bring Roman numerals to life in this unintimidating math-concept book. First, the seven Roman numerals are equated with the correct number of piglets. Then the reader may practice counting other items—hot-air balloons, gopher holes, and more—as the remarkable adventure unfolds. (And yes, there are one thousand pigs in the etching for M!)

Arthur Geisert’s unique and exquisite etchings have been widely praised and exhibited at the Chicago Institute of Art, among other museums. His work is regularly selected for the Society of Illustrators’, annual Original Art exhibition, and his illustrations are now being collected by the Dubuque Museum of Art. He lives in a converted bank in Bernard, Iowa.