Macnab was an influential force during the rebirth of wood-engraving as a form of individual expression rather than simply an illustrative one. His style is notable for its crispness and clean, elegant lines. He was also associated with the vorticist movement in England, a very minor period where the members had only one exhibition of that style.
Nevertheless Macnab's work stands up today and much can be learned from his technique and approach to this very challenging medium.