WhatsApp usWhen buying, selling, or researching artworks, you’ll often encounter attribution terms like “After,” “Circle of,” and “School of.” These phrases are widely used in the art market by auction houses, galleries and appraisers to describe how closely a piece is connected to a known artist.
Drawing on the experience and insights of our expert team and conservators, this guide explains what these terms mean and why they matter. Understanding them is essential for collectors, as they directly affect authenticity, historical importance and ultimately the value of an artwork.
What Does “After” Mean?
The term “After” is used when an artwork is a copy or reinterpretation of an original piece by a different artist. This could be produced shortly after the original or many years, even centuries later. The composition typically closely follows a known work.
In the art market, works described as “After [Artist Name]” are not originals and are usually valued accordingly. While they can still be decorative or educational, they tend to have the lowest market value among attribution categories because they lack direct authorship and originality.
Above: Wolf and Fox Hunt by Peter Paul Rubens (1616) and a copy by Sir Edwin Henry Landseer (1824–26)
However, there are important exceptions, as you can see in the example above. When a later work was made by a notable artist copying an earlier masterpiece, it can acquire significance in its own right. For example, Picasso produced numerous works “after” Old Masters, including his famous reinterpretations of Las Meninas by Velázquez – these are highly valued not as copies, but as original works engaging with art history.
Similarly, Francis Bacon’s “Study after Velázquez’s Portrait of Pope Innocent X” transforms the source material into something entirely new and is now one of his most iconic series. Even earlier, artists such as Rubens copied works by Titian, both as a form of study and admiration, and these works are now collected and valued as part of Rubens’ own oeuvre.
Above: detail from a portrait of Ange Laurent de Lalive de Jully (1759-70) after Jean Baptiste Greuze
What Does “Circle of” Mean?
“Circle of” refers to an artist who was closely associated with a well-known master. This could include pupils, studio assistants or contemporaries working within the artist’s immediate environment.
These works are generally created during the same period as the named artist and often show strong stylistic similarities. For example, works attributed to the Circle of Rembrandt may share his dramatic use of light and shadow, while those in the Circle of Caravaggio often reflect his distinctive chiaroscuro and naturalism, even if not painted by the master himself.
Above: detail from Virgin and Child with the Young Saint John the Baptist attributed to Circle of Agnolo Bronzino
This is slightly different from the term “Follower of,” which is usually used for an artist working in the style of a master, but without the same close personal connection. A Follower of Rembrandt, for instance, may clearly draw on his influence, but may have been working later or at a greater remove from the artist’s immediate studio or circle.
Because of this close connection, “Circle of” works can hold significantly more value than later copies or more loosely connected works described as “Follower of.” Collectors may find them particularly appealing due to their historical proximity and potential insight into the master’s studio practices.
Above: detail from a Portrait of Isabella of Bourbon attributed to a Follower of Peter Paul Rubens
In some cases, artists within an established circle, such as those surrounding Rubens or Van Dyck, produced works so closely aligned with the master’s style that they offer valuable context for how these influential studios operated, even if the paintings are not by the artist’s own hand.
What Does “School of” Mean?
The term “School of” is broader and indicates that an artwork comes from a particular artistic tradition, region or style associated with a well-known artist. For example, “School of Caravaggio” suggests influence from Caravaggio’s dramatic lighting and composition, but not necessarily any direct contact with him.
Likewise, a work described as “School of Rubens” may reflect the energy, colour and movement associated with Rubens and his wider artistic milieu, without being traceable to his immediate studio.
Above: a chalk sketch of Joseph Interpreting His Dream to His Brothers attributed to School of Carlo Maratti
“School of” tends to suggest a broader cultural or regional context, rather than a single artist’s direct influence alone. In terms of value, these works generally sit between “Circle of” and “After.”
They may still be historically significant, particularly where they date from the same general period or reflect an important regional tradition, but their broader and less direct connection to the named artist usually places them below more closely attributed works in market value. Even so, they can offer valuable insight into how a master’s style was absorbed, adapted and carried forward by a wider artistic community.
Above: detail from The Conversion of Saul attributed to School of Raphael
How These Terms Affect Artwork Value
Attribution terminology plays a major role in determining an artwork’s worth. The closer the connection to a named artist, the higher the potential value:
- Original works (fully attributed) – the highest value
- Circle of – high to moderate value due to close association
- School of – moderate to low value based on stylistic and regional ties
- After – these may be lower value copies or interpretations, though some examples may have individual value based on skill or attribution to another famous name
Value is also influenced by factors such as age, condition, provenance, rarity and market demand. In some cases, a particularly fine “Circle of” or historically important “School of” work may be highly desirable to collectors, especially where the work dates from the artist’s own period, reflecting a close influence or technical skill.
Above: detail from Portrait of a Young Man attributed to a follower of Dosso Dossi
Can Painting Attributions Change?
In many Old Master workshops, it was common for pupils and assistants to produce large portions of paintings, with the master adding final touches. This collaborative practice can make attribution particularly complex today, often leading to more cautious classifications when definitive authorship cannot be proven.
There are notable instances where attribution has shifted dramatically over time. For example, several paintings once catalogued as “School of Rembrandt” have, after cleaning and technical analysis, been reattributed to Rembrandt himself – resulting in significant increases in value. Similarly, a painting long dismissed as a copy of Caravaggio was later authenticated as an original following conservation work, transforming it from a relatively modest piece into a work of major importance.
Such cases highlight that attribution is not fixed. As conservation techniques advance and research deepens, artworks can be reassessed, sometimes revealing hidden details beneath layers of varnish or overpainting that change our understanding entirely.
Above: detail from Portrait of a Woman by Rembrandt van Rijn and his studio, 1635
Final Thoughts
Understanding terms like “After,” “Circle of,” and “School of” is essential for navigating the art market with confidence. These labels provide important clues about an artwork’s origin, authenticity, and relationship to a known artist.
Above: our conservator examining a painting under UV light
Whether you’re a collector, dealer, or enthusiast, recognising these distinctions will help you make more informed decisions and better understand how attribution impacts both significance and value.
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