The editorial corpus the mentor draws from when critiquing your work. Browse concepts, named artists, exercises, and lessons — each entry links to a working reference page.
Wet-into-wet painting brought to completion in one session — the discipline of decisive marks placed once and left alone. Also called direct painting or premier coup.
The structural understanding of the human (or animal) body — skeleton, muscle, surface anatomy — required for convincing figurative work.
How distance affects value, color, chroma, and edge. The visual signature of receding air — central to landscape, and relevant anywhere depth matters.
The application of paint as a visual element — the painter's handwriting. Mark variety, paint quality, and the freshness of the surface.
The properties of hue, chroma, and temperature, plus the relationships between them — the second most powerful tool in painting after value, and the trickiest of the foundational principles to teach.
The arrangement of shapes and the design of the picture plane — the structure on which everything else hangs. Successful composition leads the eye in, holds it at the focal point, and prevents it from escaping the frame.
The foundation skill of accurate observation rendered in line and shape — the structural framework that underlies every other principle. Without sound drawing, no amount of color or brushwork can rescue a painting.
The quality of the boundary between two shapes — hard, soft, lost, or found. Edge variety directs the eye and integrates form with ground. Edge control is what separates competent painting from masterful painting.
Building color through transparent layers over a dry underpainting — the technique behind luminous depth that no direct application can produce.
How light reveals form. The form principle — light, halftone, core shadow, reflected light, cast shadow — is the bridge between drawing and convincing three-dimensionality.
The geometric system for representing three-dimensional space on a two-dimensional surface — the rules of receding lines and vanishing points.
The Japanese-rooted concept of designing pure light-and-dark pattern, independent of subject. A specialized framework for value composition: reduce the painting to 3–4 masses and check whether the design works.
The diagnostic skill of looking at one's own work systematically — the meta-skill that turns practice into improvement. Central to the app's purpose.
The skill of reducing visual information to its essential design — knowing what to leave out is often more important than knowing what to put in.
The lightness or darkness of tones, independent of color — the structural backbone of any painting that reads at a distance. Often called the single most important principle in painting.
Founder and core practitioner of Impressionism — the painter of light's behavior, broken color, and the same subject across time.
The Spanish court painter whose technical economy and edge control made him the painter's painter — admired by Manet, Sargent, and every realist tradition since.
American expatriate painter of compressed tonal harmony — the supreme exemplar of simplification, restraint, and the painting as design rather than illustration.
Spanish master of outdoor light — the supreme exemplar of warm-light-cool-shadow color logic, working in plein air figure painting at full scale and at speed.
The Dutch master of window light and quiet interiors — paintings of mathematical compositional rigor where light reveals form with optical precision.
American painter of bravura brushwork — the modern master of edge variety and alla prima decision, working in a portrait tradition refined to its sharpest economy.
Post-Impressionist founder of structural color and modernist composition — the painter who taught later generations that the picture is a constructed object, not a window.
Dutch master of light, shadow, and psychological depth — the painter of soft and lost edges, where forms emerge from and dissolve into darkness.
American mid-century master of composition and edge in abstraction — the painter whose Ocean Park series shows what color, edge, and structure can do without representational subject.
American master of value, watercolor, and the figure or landscape under decisive weather — a painter whose best work captures American outdoor life with clarity and unsentimental honesty.
Complete a small still life in a single wet-into-wet session — no reworking, no multi-day refinement. Develops decisive observation, pre-mixed palette discipline, and the freshness that only single-session painting produces.
Sustained graphite drawing from a plaster cast or simple white object — the classical atelier exercise for developing relational seeing and structural drawing.
Paint a simple form using all four edge types deliberately — hard, soft, lost, and found. Practice edge handling as design rather than accident.
A timed session of quick figure drawings, ranging from 30 seconds to 5 minutes per pose. Develops perceptual speed and the habit of seeing gesture (line of action) before detail.
Paint a subject using only 4 pigments plus white — typically Zorn (yellow ochre, vermilion, ivory black, white) or earth palette (yellow ochre, burnt sienna, ultramarine, white). Develops color discipline, temperature sensitivity, and mixing fluency.
Copy a section of a master's painting in oils. Forces the student into the master's perceptual framework and reveals the specific decisions that make the work succeed.
Reduce a subject to 3 or 4 pure values, designing pure light-and-dark pattern. The discipline of designing composition before any painting begins.
Outdoor painting under strict 30-minute time pressure. Forces simplification, decisive value/color choices, and the observation of light before it moves.
A systematic diagnostic look at your own painting using the standard passes — value, composition, color, edges, drawing. The meta-skill that converts practice into improvement.
Paint a 9-step value scale from black to white. Develops the eye's ability to judge and mix discrete value steps — the foundation for everything in value painting.