The American Jewish Committee is to sue the German arm of online books giant Amazon for selling more than 50 Holocaust denial books or books which "trivialise" the Nazis.
Deidre Berger, AJC's German director said: "It is unacceptable that books are for sale on Amazon.de that normally are only available under the counter in far-right extremist shops.
"We cannot let the spread of internet sales erode laws that ban Holocaust denial and incitement to hatred of minorities in Germany."
The organisation has filed a lawsuit with the state prosecutor in Munich to remove the books