The elements of perspective : arranged for the use of schools and intended to be read in connexion with the first three books of Euclid
John Ruskin's 1859 Elements of Perspective, published in London by Smith, Elder, is a schoolbook teaching perspective alongside the first three books of Euclid. The pictures are plain line diagrams of vanishing points, orthogonals and cubes constructed with ruled lines and lettered corners, which a designer could use as clear geometric reference for grids, receding space and layout construction.
