A portrait traditionally promises recognition. It gives a face a name, freezes an expression and suggests that somewhere behind the surface sits a stable individual who can be represented. Paul Klee repeatedly undermined that promise. His faces often look less like portraits than masks assembled from intersecting lines, mismatched eyes, geometric planes and signs that might belong equally to a person, puppet or theatrical character. Identity in these works does not disappear. It becomes difficult to hold still.
That instability sits at the center of Klee Behind the Mask, which opened at the San Francisco Museum of Modern Art on August 8, 2026. SFMOMA presents Klee within a broader modern fascination with masks, connecting his work to ancient ritual, theater, caricature, folk traditions, Dada and Surrealism. Rather than treating the mask as something placed over a true face, the exhibition asks a more unsettling question: what if identity itself is already a collection of roles?
The museum anchors that interpretation in one of Klee’s striking observations about himself: “My self, for instance, is a dramatic ensemble.” SFMOMA’s Klee Behind the Mask exhibition uses that idea to frame his simplified figures as symbolic systems rather than conventional portraits.
Klee was not a member of the Surrealist movement. Yet the exhibition reveals why his fractured faces resonated so strongly within the same avant-garde culture that produced Dada and Surrealism. A mask could expose something a realistic portrait often concealed: the possibility that the self was never singular in the first place.
Klee Made The Face Less Reliable
Human beings are unusually sensitive to faces. A handful of marks can become eyes, mouth and nose almost instantly.
Klee exploited that reflex.
Many of his figures contain remarkably little conventional anatomical information. A circle might become a head. Two marks become eyes. A line divides the face into incompatible zones. Shapes overlap until it becomes unclear whether viewers are seeing flesh, costume, architecture or painted surface.
Instead of reducing psychological complexity, this simplification can intensify it.
A realistic portrait offers clues about age, status, clothing, physical appearance and mood. Klee removes much of that information. What remains is a visual system that forces the viewer to interpret signs.
SFMOMA describes his interlocking figures as functioning like masks. That distinction helps explain why they can feel more psychologically unstable than descriptive portraits. A mask does not need to reveal a person’s features. It creates another identity through substitution.
Klee repeatedly pushed the human face toward that threshold.
The Metropolitan Museum of Art’s Portrait of a Yellow Man (1921) offers a useful example. Made with watercolor, transferred printing ink and ink, the work belongs to the period when Klee was beginning his decade at the Bauhaus. The Met’s Portrait of a Yellow Man shows how little naturalistic description Klee required before an arrangement of shapes could begin behaving like a human presence.
The result is not anonymity.
It is ambiguity.
The Mask Connected Ritual, Theater And Modern Psychology
Masks carried enormous cultural weight for European modernists around the beginning of the 20th century.
They belonged simultaneously to ritual, performance, carnival, popular entertainment and museum collections. They could signify transformation, concealment or spiritual presence. Theater demonstrated that changing a face could produce a different character, while modern psychology was destabilizing older assumptions about a unified conscious self.
SFMOMA places Klee at the forefront of this growing fascination.
The exhibition links masks with theater, caricature and folk culture, areas where the distinction between serious art and popular visual culture could become porous. Klee was especially receptive to that instability.
Theater appears repeatedly across his work.
According to the Metropolitan Museum of Art, Klee’s son Felix estimated that more than 500 of the 9,146 works recorded in the artist’s oeuvre catalogue refer to theater, masks or music. The Met discusses this connection through Abstract Trio (1923), a watercolor derived from an earlier drawing Klee had titled Theater of Masks. The Met’s Abstract Trio demonstrates how easily his shapes could move between mask, performer and abstract sign.
That uncertainty is central to the work.
If a form can look like a face in one context and a sound pattern in another, identity becomes dependent on interpretation.
The mask is no longer merely something worn.
It becomes a way of thinking about perception.
World War I Made Stable Identity Harder To Believe In
The historical setting behind these experiments matters.
Klee lived through the First World War, serving in the German military from 1916 until 1918. The conflict transformed the European artistic environment around him. Friends and colleagues were killed, displaced or psychologically altered.
SFMOMA argues that after the war, the modern fascination with masks acquired new urgency. Klee increasingly used abstraction as a way to process a world whose previous social and cultural assumptions had fractured.
A realistic portrait belonged to a long tradition of identifying an individual through visible features.
After mass warfare, political collapse and technological violence, that certainty could look inadequate.
Modern artists confronted damaged bodies, traumatized veterans, shifting political identities and societies attempting to reconstruct themselves. Dada answered partly through absurdity and fragmentation. Surrealism would soon turn toward dreams, unconscious impulses and irrational association.
Klee followed his own route.
He used signs.
Faces splintered into systems of lines. Bodies became diagrams. Human figures approached puppets, performers, angels and symbolic creatures.
This does not make Klee a Surrealist. His intellectual and artistic path ran through Expressionism, Der Blaue Reiter, Bauhaus teaching, music, abstraction and a highly personal visual grammar.
Yet it helps explain why his work circulated so easily among artists connected to Dada and Surrealism. SFMOMA notes that Klee’s work was widely disseminated through exhibitions and reproductions and became visible within precisely those avant-garde circles.
They recognized a shared problem.
Reality no longer looked psychologically stable.
At The Bauhaus, A Face Could Become A System
Klee joined the Bauhaus faculty in 1921, after Walter Gropius invited him to teach at the influential school.
He remained there for a decade, first in Weimar and later in Dessau.
The Bauhaus is often remembered through architecture, furniture and industrial design, but its educational program depended heavily on investigations of color, form, materials and visual relationships. Klee taught alongside figures including Wassily Kandinsky and Josef Albers.
The Met notes that Klee produced almost half of his nearly 10,000 works on paper during his Bauhaus years. Its Klee Bauhaus overview demonstrates the extraordinary diversity of experiments he conducted during this period.
Masks fit naturally into that environment.
Klee could analyze a face as a set of formal relationships: circle against line, positive against negative, symmetry against disruption, color against contour.
Once the face becomes a system, conventional likeness matters less.
That approach separates many Klee figures from traditional portraiture. A portrait typically asks, “Who is this?”
Klee’s masks often ask something stranger:
“What makes you decide this is a person at all?”
The difference opens enormous psychological territory.
A viewer supplies recognition. The image supplies just enough information to trigger it.
Identity emerges through collaboration between artwork and observer.
That mechanism connects Klee with later Surrealist experiments in perception, where familiar forms could acquire new identities simply by changing context.
Readers interested in how another major modernist used ordinary perception to destabilize recognition can compare Klee’s masks with Man Ray’s Surrealist photography innovations. SFMOMA itself includes Man Ray’s Untitled (Mask) (1955) in Klee Behind the Mask, reinforcing the exhibition’s dialogue between Klee and artists associated directly with Surrealism.
A Mask Can Reveal More By Showing Less
The familiar phrase about masks says that they hide identity.
Klee’s work suggests the opposite can sometimes happen.
A realistic face carries distracting information. Bone structure, skin, hairstyle and expression encourage viewers to treat appearance as evidence of personality.
Strip those features away and different questions emerge.
Is the figure anxious?
Comic?
Threatening?
Performing?
Watching?
Being watched?
A simplified mask can support several interpretations simultaneously.
That multiplicity fits Klee’s description of the self as a “dramatic ensemble.” The metaphor implies that identity consists of several performers rather than one permanent character.
Modern psychology was increasingly receptive to similar instability. The early 20th century witnessed intense debates about the unconscious, dreams, memory, sexuality and the relationship between rational thought and hidden impulses.
Klee did not illustrate psychoanalytic theories straightforwardly.
His faces nevertheless belong to the same historical crisis of the unified individual.
They make personality look assembled.
Comedian Turns The Portrait Into Performance
One of the works previewed by SFMOMA is Komiker (Comedian) [Invention 4] (1904).
Its early date is revealing.
Klee’s interest in masks and theatrical identity did not suddenly appear after his Bauhaus appointment or after Surrealism emerged in Paris. Performance already occupied his imagination well before those developments.
A comedian performs an identity by profession.
The face presented to an audience may deliberately differ from the private person behind it. Exaggeration, gesture and costume become tools for creating a readable character.
Klee understood how close this process was to caricature.
Caricature distorts a face in order to make something about the person seem clearer. A portrait tries to preserve likeness. Caricature sacrifices likeness for interpretation.
The mask pushes the process further.
It can replace the individual altogether.
This sequence—from portrait to caricature to mask—helps explain Klee’s unusual approach to identity. Accuracy was not necessarily the best route toward psychological truth.
Distortion could reveal another kind of truth.
Claude Cahun Makes SFMOMA’s Surrealist Connection Sharper
SFMOMA strengthens its argument by placing Klee beside artists whose engagement with identity became more explicitly radical.
The exhibition preview includes Claude Cahun and Marcel Moore’s Untitled (Hands and Doll) (1936).
Cahun’s photographic self-images are now central to discussions of Surrealism, performance and unstable identity. Through costumes, shaved hair, theatrical poses and visual ambiguity, Cahun repeatedly challenged the assumption that a photograph reveals an authentic, permanent self.
Klee and Cahun worked differently.
Klee often dissolved the face through abstraction.
Cahun used photography and performance.
Yet both methods undermine portraiture’s promise of certainty.
The contrast helps prevent Klee Behind the Mask from becoming a claim that Klee secretly belonged to Surrealism. A stronger argument emerges instead: Klee helped establish a modern visual language in which the face could become symbolic, theatrical and unstable, and artists around Dada and Surrealism recognized the possibilities of that language.
A historical boundary can remain intact without eliminating artistic dialogue.
The Nazis Turned Identity Into A Political Weapon
Klee’s later biography gives the subject of identity a darker dimension.
After leaving the Bauhaus in 1931, he taught at the Düsseldorf Academy. That position ended after the National Socialists came to power.
The Nazis denounced modernist art through ideological categories that treated abstraction and experimentation as evidence of cultural degeneration. Klee lost his position and returned to Bern in 1933.
The Metropolitan Museum of Art records how Nazi authorities classified his work as “degenerate”, forcing his departure from Germany. Its Paul Klee biography places this political rupture within the increasingly somber final phase of his work.
The irony is difficult to miss.
Klee had spent decades creating figures whose identities resisted fixed visual classification.
Fascism depended on doing the opposite.
It sought rigid classifications of people, culture and belonging.
Against that historical background, Klee’s unstable figures acquire implications they did not need to carry when first created. A face that refuses to fit one category can look unexpectedly resistant to an ideology obsessed with classification.
His later work became heavier in line, broader in form and often darker in tone.
The mask remained relevant.
One Who Understands Makes A Face Look Like A Cracked Surface
Klee’s One Who Understands (1934) provides one of the clearest examples of what happened to his faces after returning to Switzerland.
The Metropolitan Museum describes the head as a squared circle divided by lines that simultaneously fragment the entire picture like a cracked window. The face and its surrounding space become part of the same broken structure. The Met’s One Who Understands dates the work to the year after Klee’s removal from Düsseldorf.
That construction creates a portrait without conventional depth.
There is no convincing skull beneath the surface.
There may not even be a meaningful distinction between person and environment.
Instead, identity becomes diagrammatic.
A viewer recognizes a face because certain signs remain in place. Yet those signs belong equally to the geometry surrounding them.
The person seems assembled from the same fractures as the world.
That is why Klee’s masks can feel psychologically more unstable than portraits.
They do not merely show changing expressions.
They question whether a fixed subject exists behind the expression at all.
Why Klee Matters To Surrealism Without Becoming A Surrealist
For thesurrealists.org, Klee presents a useful art-historical boundary case.
His imagery can feel dreamlike, grotesque, comic and irrational. Surrealists knew his work, and SFMOMA explicitly places objects by artists associated with Dada and Surrealism alongside his masks.
Yet precision matters.
Klee should not be retroactively absorbed into Breton’s movement simply because his images sometimes look surreal.
His career developed through different institutions and affiliations: Der Blaue Reiter, Expressionism, Bauhaus teaching and independent experiments with abstraction, music, theater and symbols.
That difference makes the comparison more useful rather than less.
Surrealism did not emerge in isolation.
It belonged to a broader modernist crisis surrounding rationality, identity and representation. Klee’s masks demonstrate how artists outside Surrealism were dismantling the stable portrait at roughly the same historical moment.
The unsettling question was shared.
How much can a face change before the person disappears?
Klee’s answer appears to be another question.
What if there was never just one person there?
Why The Mask May Tell Us More Than The Portrait
Klee Behind the Mask is timely because the idea of a stable visual identity has become even harder to sustain.
Modern audiences constantly construct different versions of themselves for professional profiles, social media, private messaging, photographs and physical encounters. A face can now be filtered, altered, generated or performed for several audiences within the same day.
Klee’s paintings cannot be reduced to a prediction of digital identity.
Their relevance is more fundamental.
He understood that representation creates identities rather than simply recording them.
A conventional portrait encourages viewers to believe they have encountered the person.
A mask announces the existence of a performance.
Klee’s genius was to blur the distinction.
His faces can look simultaneously sincere and theatrical, human and abstract, comic and anxious. They contain enough information to produce recognition but too little to guarantee certainty.
That is why the masks feel more unstable than portraits.
A portrait says: this is someone.
A Klee mask asks: which version?
SFMOMA’s exhibition brings that question into direct conversation with Dada, Surrealism, theater, psychology and the fractures of the early 20th century. More than a century after Klee began turning faces into symbolic systems, the question has lost none of its force.
The mask does not necessarily hide the self.
In Klee’s work, it exposes how many selves may have been there all along.