Janusz KorczakK wrote the classic children’s book King Matt the First and many nonfiction works. To mark the centennial of Korczak’s birth, the United Nations declared 1979 the International Year of the Child and dedicated it to him. Korczak perished in 1942 in Treblinka, along with the Jewish orphans he refused to abandon.Sandra Joseph is a children's therapist based in London.

Janusz KorczakK wrote the classic children’s book King Matt the First and many nonfiction works. To mark the centennial of Korczak’s birth, the United Nations declared 1979 the International Year of the Child and dedicated it to him. Korczak perished in 1942 in Treblinka, along with the Jewish orphans he refused to abandon.Sandra Joseph is a children's therapist based in London.