While many of the so-called "degenerate artists" persecuted by the Nazis are now world-renowned, those who painted in concentration camps, such as Waldemar Nowakowski (pictured) are almost forgotten. The book and the exhibition "Der Tod hat nicht das letzte Wort" (Death does not have the last word), opening on January 27 in the German Parliament, the Bundestag, offer a tribute to these artists.

The writer, exhibition curator and art historian Jürgen Kaumkötter spent more than 15 years researching Holocaust art. His focus goes beyond the works which emerged during the war, including all forms of art dealing with the events in retrospect. Leo Haas created this etching about the Theresienstadt concentration camp in 1947. Some inmates even managed to draw while they were in the camps.

Artistic life in Theresienstadt has been better documented than that in Auschwitz, which nevertheless had its own "concentration camp museum." Artists were given pencils, brushes and paper to carry out assignments for the Nazis. Other works were created covertly. However, almost no art emerged from the extermination camp Auschwitz-Birkenau. Pictured here: Marian Ruzamski, self-portrait, 1943-44.

Yehuda Bacon (pictured right) arrived in Theresienstadt in 1942, when he was 13 years old. He was sent to Auschwitz-Birkenau in December 1943, where he was employed as a messenger and was allowed to warm up by the ovens of the crematories in winter. Not only would he later testify during the Frankfurt Auschwitz trials, he'd also show what he saw there through the drawings he made after the war.

Later drawings by Yehuda Bacon do not show Auschwitz in detail, unlike those he made for the Frankfurt judges. Yet one can still recognize the square chimneys of the crematories, a shower head, and outlines of people. For art historian Kaumkötter these images are an allegory of death in the gas chambers and graves in the skies. Beyond their testimonial value, they are valuable works of art.

Michel Kichka is an influential comic illustrator in Israel. The graphic novel "Zweite Generation. Was ich meinem Vater nie gesagt habe" ("Second generation: what I never told my father") deals with his relationship with his father, an Auschwitz survivor. As a child, Kichka was traumatized by his father's story. His dad's jokes about the concentration camp would help him overcome his nightmares.

The parents of the Israeli artist Sigalit Landau were also Holocaust survivors, and her art teacher was the Auschwitz survivor Yehuda Bacon, who is still active as an artist and professor in Israel to this day. Her works integrate metaphorical allusions to the Shoah, such as these shoes, reminiscent of the mountains of footwear which can be seen in the permanent exhibition at Auschwitz.

Sigalit Landau collected a hundred pairs of shoes in Israel and sank them in the Dead Sea. The sea covered the shoes with layers of its healing salt, an allegory for life beyond death. She wanted to show them in Berlin, as a symbol for hope overcoming despair. The exhibition "Der Tod hat nicht das letzte Wort" ("Death does not have the final word"), will stay in Berlin until February 27.

On January 27, 1945, the Soviet Red Army liberated the Nazi concentration camp at Auschwitz. In 1996, then German President Roman Herzog marked it as a day to commemorate the victims of the Nazi Holocaust. In 2005, the United Nations named it a day of international day of remembrance. Since then, people gather across the world to remember those who lost their lives.

Dozens of Auschwitz survivors commemorated International Holocaust Remembrance Day and paid homage to the Holocaust's victims by returning to the camp 72 years after it was liberated. Survivors placed wreaths in front of the camp's infamous shooting wall. Around 1.1 million people were murdered or died at Auschwitz between 1940 and 1945, 90 percent of them were Jewish.

Germany's Bundestag commemorated International Holocaust Remembrance Day with a series of speeches. Chancellor Angela Merkel and President Joachim Gauck joined parliamentarians in listening to Felix Klieser, who was born without arms, play Norbert von Hannenheim's "Todeserfahrung." Hannenheim, who suffered acute psychological problems, was admitted to a Nazi "euthanasia" hospital.

The Vice-President of Germany's parliament, Claudia Roth, laid a wreath commemorating the Sinti and Roma people murdered by Nazi regime. Next to the Jewish communities, the Sinti and Roma were also widely persecuted and then deported to concentration camps. Still, today they continue to make up one of Germany's largest ethnic groups.

Israel Prime Minister Benjamin Netanyahu wore a kippa as he entered the synagogue at the Yad Vashem Holocaust Memorial Museum in Jerusalem a day prior to International Holocaust Memorial Day on January 26. In his speech, Netanyahu addressed the threat posed by Iran and pointed to new US President Donald Trump as a strong ally of Israel's.

The Chief Rabbi of Russia, Berel Lazar, attended a candle lighting ceremony at the Jewish Museum and Tolerance Center in Moscow. Although the Soviet Union suffered a number of anti-Semitic controversies, Moscow openly received tens of thousands of Soviet Jews from the Pale of Settlement into its newly industrialized cities.

At York Minister in England, Canon Chancellor Christopher Collingwood lit 600 candles in the shape of the Star of David. In 1942, the Archbishop of York was one of the first people to condemn the Nazi Holocaust. Long before the Holocaust, the city witnessed the worst Jewish massacre in British history when, in 1190, some 150 Jews were targeted and killed in a series of anti-Semitic riots.

Italian Holocaust survivors Sami Modiano, right, and Piero Terracina embraced each other during a commemoration ceremony in Rome's Capitoline Hill. Dozens of guests, including Rome mayor Virginia Raggi, attended the ceremony.

A wreath from Croatia's president, prime minister and the parliament speaker was laid at the monument for Jewish WWII victims in Zagreb's "Mirogoj" cemetery. However, Croatia's Jewish community boycotted Friday's remembrance ceremony, accusing the conservative government of not doing enough to curb pro-Nazi sentiment in the EU's newest member state.

Holocaust survivor Edmund Zeligman lit a candle during a commemoration ceremony in the synagogue in Vilnius, Lithuania. Around 95 percent of Lithuanian Jews were massacred during the country's three-year occupation by the Nazis. No country saw a larger share of its Jewish community executed in the Holocaust.

A number of Belarusian students marked International Holocaust Remembrance Day by attending the Belarusian Jewish Resistance Museum in the city of Navahrudak. In 1941, under Nazi occupation, German soldiers established a Jewish a ghetto at the site where the museum now stands.