The treatise offers practical, step-by-step guidance on making, repairing, and caring for violins, grounded in the author's decades of workshop experience and admiration for Stradivarius. It begins with selection and properties of woods, then proceeds through construction details—ribs, back, belly, arching, purfling, thicknessing, f-holes, bass-bar, neck, fingerboard, and dimensions—and continues with fittings such as pegs, bridge, tailpiece, sound-post, and strings. Final chapters address varnish, cleaning, maintenance, and bow construction, combining technical measurements with hands-on tips for professional makers and informed amateurs.