the-points-a-map-keeps
the-pole-of-the-horizon
the-ray-that-bends
the-rig-and-the-dome
the-screen-that-curves
the-six-numbers
the-surface-that-does-both
the-track-and-the-scene
the-triangle-of-horizons
the-wall-under-the-paint
three-pairs-fix-a-line
three-point-laid-out
through-the-window
toe-in-against-off-axis
two-curves-on-one-ball
two-eyes-one-picture
two-grounds
two-matches-and-a-mirror
two-motions-one-pair
two-outlines-two-curves
two-rays-that-miss
vanishing-points-on-the-page
what-a-direction-can-paint
what-a-direction-costs
what-a-flat-scene-leaves-free
what-a-hand-leaves
what-a-pupil-sees-around
what-a-screen-says-about-its-seat
what-a-screen-wants
what-a-shadow-count-says
what-a-shadow-reads
what-a-silhouette-cannot-reach
what-a-straightedge-reaches
what-a-surface-spends
what-a-tradition-keeps
what-an-eye-can-paint
what-another-view-buys
what-each-system-preserves
what-is-behind-the-camera
what-more-measurement-buys
what-shadows-determine
what-the-absorption-costs
where-a-pair-agrees
where-to-stand
where-two-rules-meet
which-rule-a-lens-obeys
wrong-eye