After Ruskin's introduction to the Liber Studiorum, the work would always be associated for him with the concept of unity in art, and from the first Ruskin argued that the plates should not be regarded 'as individually perfect, but as, each, part of a great system - illustrative of each other' ( Works, 36.33-36). This is linked with the development of his concept of the associative imagination (see The Liber Studiorum and the associative imagination). In Modern Painters V (1860) this would be transformed into the Law of Help, where again there is a strong link with the Liber Studiorum (see Davis, The 'dark clue' and the Law of Help).