Your bag is empty
CatalogOne-, two- and three-point perspective, constructed form, ellipses, and sketching buildings and interiors that sit correctly in space.
This level is for anyone who wants perspective to be something they can verify rather than guess at. Perspective is unusual among drawing skills in that it is entirely checkable: a drawing is either constructed consistently or it is not, and the error can be located rather than merely sensed. That makes it learnable in a way that many other skills are not.
By the end of this level you can construct a simple building or interior in correct perspective and verify it rather than hoping it looks right. You can find an error in your own construction and trace it back to its cause, and you can place objects at a consistent depth. Perspective becomes a procedure rather than an intuition you either have or lack.
This level is for artists whose boxes are correct but whose buildings still look wrong. The gap is usually made up of the forms that do not reduce neatly to rectangular solids: arches, stairs, sloping roofs, cylinders and anything circular. These require construction methods of their own, and guessing at them undermines an otherwise accurate drawing immediately.
By the end of this level you can draw complex architectural forms including curves, slopes and repeated elements without the construction breaking down. You can divide a space accurately to place windows, columns or steps, and you can cast a shadow that is consistent with your light source. The awkward forms stop being the parts you avoid.
This level is for artists sketching real places at speed and from observation, where the constructed methods of earlier levels have to be compressed into something usable in a café in twenty minutes. On location you cannot plot every vanishing point, so the skill becomes estimating accurately and checking selectively, using construction to confirm rather than to generate.
By the end of this level you can sit in front of a real street or interior and produce an accurate, atmospheric sketch within a limited time. You can judge by eye what previously required construction, and check yourself efficiently rather than exhaustively. Perspective stops being something you set up and becomes something you see.
This level is for artists using perspective expressively rather than only correctly. Correct perspective is a neutral tool, and there are pictures for which strict correctness is the wrong choice: extreme viewpoints, curvilinear systems and deliberate distortion all describe experience more accurately than a textbook construction sometimes does. Departing from the rules usefully requires knowing them thoroughly first.
By the end of this level you can bend or break the rules knowingly, for a reason you can articulate, and still control precisely how a space reads. You can build convincing invented architecture with its own internal logic, and you can use viewpoint as an expressive decision. Perspective becomes a language you are speaking rather than a standard you are meeting.