E. A. Posselt's textbook explains the construction and operation of the Jacquard machine, with about 230 illustrations. It describes the parts of the machine, the harness and comber-boards, and a long series of tie-ups (straight-through, point, centre, combined, sectional, compound harness, gauze and ingrain carpet). It also covers card stamping, card-punching machines and card lacing, followed by practical hints on Jacquard designing: designing paper, sketching, outlining in squares, and shading with satin and twill weaves. The volume ends with sample articles and advertisements for Posselt's other books and for textile machinery makers.