
Arthur Schopenhauer is a sculpture of German philosopher Arthur Schopenhauer by sculptor Elisabet Ney. Completed in 1859, the piece is a portrait bust rendered in marble. The bust was modeled and carved in Germany, but it is now held by the Elisabet Ney Museum in Austin, Texas, United States.

The Double Herm of Socrates and Seneca is an ancient Roman statue from the first half of the third century AD. The herm depicts the Greek philosopher Socrates on one side, and the Roman Stoic Seneca the Younger on the other. It currently belongs to the Antikensammlung Berlin, found in the Altes Museum.
An outdoor bronze portrait bust of German writer Johann Wolfgang von Goethe by sculptor Karl Fischer is installed on the south side of Bryant Park in Manhattan, New York. It is a replica of an iron and copper bust created by Kischer around 1832, the year of Goethe's death. Acquired by the Goethe Society of America in 1987, it was displayed at the Metropolitan Museum of Art until it was relocated to Bryant Park in 1932. Following its installation there, the iron and copper bust was replaced with a bronze casting and dedicated on February 15, 1932. The sculpture was refurbished in 1992 by the Bryant Park Restoration Corporation. The sculpture sits on a Swedish black granite pedestal.

The Head of Franz Kafka, also known as the Statue of Kafka, is an outdoor sculpture by David Černý depicting Bohemian German-language writer Franz Kafka, installed outside the Quadrio shopping centre in Prague, Czech Republic. The kinetic sculpture is 11 metres tall and made of 42 rotating panels. Each layer is mechanized and rotates individually.

Jacob Grimm is a sculpture of German philologist Jacob Grimm by sculptor Elisabet Ney. Completed in 1858, the piece is a portrait bust rendered in marble. The bust was modeled and carved in Berlin, but it is now held by the Elisabet Ney Museum in Austin, Texas.

The John Donne Memorial is a bronze bust of John Donne by Nigel Boonham, installed in the garden to the south of St Paul's Cathedral in London, United Kingdom. Donne faces east towards his birthplace on Bread Street. Below the bust is an inscription with the text

The John Heminges and Henry Condell Memorial is a memorial to the actors John Heminges and Henry Condell in the former churchyard of St Mary Aldermanbury on Love Lane, London EC2. The memorial is made from pink granite and topped with a bust of Shakespeare. It was built in 1896. It has been Grade II listed since 1972.

The Karl Marx Monument is a 7.10m (23.29ft)-tall stylized head of Karl Marx in Chemnitz, Germany. The heavy-duty sculpture, together with the base platform, stand over 13 meters tall and weighs approximately 40 tonnes. On a wall just behind the monument, the phrase "Workers of the world, unite!" is inscripted in four languages: German, English, French and Russian.

The Tomb of Karl Marx stands in the Eastern cemetery of Highgate Cemetery, North London, England. It commemorates the burial sites of Marx, of his wife, Jenny von Westphalen, and other members of his family. Originally buried in a different part of the Eastern cemetery, the bodies were disinterred and reburied at their present location in 1954. The tomb was designed by Laurence Bradshaw and was unveiled in 1956, in a ceremony led by Harry Pollitt, the General Secretary of the Communist Party of Great Britain, which funded the memorial. The tomb consists of a large bust of Marx in bronze set on a marble pedestal. The pedestal is inscribed with quotes from Marx's works including, on the front, the final words of The Communist Manifesto, "Workers of all lands unite". Since its construction, the tomb has become a place of pilgrimage for followers of Marxist theory. It has also been a target for Marx's opponents, suffering vandalism, and two bomb attacks in the 1970s. It is a Grade I listed structure, the highest listing reserved for buildings and structures of "exceptional interest".