Question: Who take Van Gogh to etching?
About the article "Portrait of Dr. Gachet", section "Etching".

Candidate passages:
Van Gogh, introduced to etching by Gachet, made the etching "Portrait of Doctor Gachet" in 1890.
Gachet and Van Gogh discussed creating a series of southern France themes but that never happened.
This was the one and only etching, also known as "L'homme à la pipe" (Man with a pipe), that Van Gogh ever made.
Van Gogh's brother, Theo, who received an impression of the etching, called it "a true painter's etching.
No refinement in the execution, but a drawing on metal."
It is a different pose than that in Van Gogh's "Portrait of Dr. Gachet", owned by Musée d'Orsay.
The National Gallery of Canada finds that "The undulating flow of the line is typical of the expressive quality of Van Gogh's late style."
The impression owned by the National Gallery is from one of the 60 printings following Van Gogh's death by Dr. Gachet's son, Paul Gachet Jr. Gachet's collector's stamp appears on the bottom edge of the print.
Vincent van Gogh (1853–1890) was a Post-Impressionist Dutch painterVan Gogh or van Gogh, a family name meaning "from Gogh", may also refer to: 
In 2008 Yolande Clergue’s original ambition to create a Fondation Van Gogh was given new momentum by Luc Hoffmann who established a permanent framework called Fondation Vincent van Gogh Arles for activities designed to preserve the memory of Vincent Van Gogh in Arles and to foster contemporary art. 
 In 1971, singer Don McLean wrote the ballad "Vincent" in honor of Van Gogh; also known by its opening words, "Starry Starry Night," the song refers to the painting  McLean's song was also sung by Josh Groban in 2002, and the punk band NOFX did a version which can be found on a rarities and b-sides double album.
In 2006, Hong Kong singer-songwriter Ivana Wong composed a song called "Painting's Meaning" (Traditional Chinese: "畫意") in memory of van Gogh.
In 2007, Folk rock songwriter Freddy Blohm had a different take on Van Gogh in the song "Cheerful."
Bob Dylan in the 1960s wrote an unreleased, but widely bootlegged, song called "Vincent Van Gogh."
Bob Neuwirth, a folksinger friend of Bob Dylan's, wrote a song in the 1960s called "Where did Vincent van Gogh?"
Bandits of the Acoustic Revolution (and later frontman Tomas Kalnoky's other band Streetlight Manifesto) mention van Gogh in their song "Heres to Life": "Vincent Van Gogh why do you weep?/ You were on your way to heaven but the road was steep./ Who was there to break your fall,/ we're guilty one and all."
The title track for Joni Mitchell's album Turbulent Indigo references Van Gogh's madness.
The album cover is a take on Van Gogh's "Self-Portrait with bandaged ear".
A Spanish Group is named La Oreja de Van Gogh ("Van Gogh's Ear").
There was a parody of Van Gogh and his ear in the Family Guy Episode "Fast Times at Buddy Cianci Jr High" The Vigilantes of Love released a song titled "Skin" which is about Van Gogh.
Smooth jazz composer/singer Michael Franks released the song "Vincent's Ear" in 1990 on his "Blue Pacific" album produced on the Reprise label.
Lyrics include "No-one understands all the love inside he tried to give/No-one understands his life was hard to live."
Van Gogh wrote to his brother Theo in November 1882 that he had drawn a portrait of Jozef Blok (F993), a street bookseller who was sometimes called "Binnenhof's outdoor librarian".
Unlike the character studies, the work was detailed in pencil with watercolor and chalk.
At this time it was rare for Van Gogh to use color, as he found it difficult to work with (see early works of Vincent van Gogh).