author
Best known for vivid, hands-on educational books and charts, this 19th-century Chicago publisher helped turn science and geography into something readers could explore as well as read. His works mixed curiosity, instruction, and showmanship in a way that still feels striking today.

by L. W. (Levi W.) Yaggy, T. L. (Thomas Louis) Haines
Born in Plainfield, Illinois, in 1848, Levi W. Yaggy became an American author, publisher, and inventor whose career was closely tied to Chicago publishing. Sources available here describe him as having studied at Northwestern College in Naperville before entering the publishing business and building Great Western Publishing House into a widely known operation.
Yaggy wrote and produced ambitious educational works on subjects including geography, anatomy, health, and antiquity. He is especially remembered for large-format instructional pieces such as Yaggy's Geographical Study and anatomical teaching charts, which were designed to make complex subjects visual and memorable for students and general readers.
He died in 1912, but his books and charts still attract attention for their inventive design and rich illustration. They offer a glimpse of a time when popular education, publishing, and visual spectacle were closely connected.