Munsch, whose 85 published books include The Paper Bag Princess and Love You Forever, was diagnosed with dementia in 2021 and also has Parkinson's disease.
| An unhappy combination… |
...which still proudly claims Walter Duranty's Pulitzer prize...
Magazine that he had not decided a date for his death, but said he would go "when I start having real trouble talking and communicating. Then I'll know."
Canada first legalised euthanasia in 2016 for people with terminal illnesses. In 2021, the law was changed to include those with serious and chronic physical conditions, even in non-life threatening circumstances.
Munsch has sold more than 80 million copies of his books in North America alone and they have been translated into at least 20 language - including Arabic, Spanish and Anishinaabemowin, an indigenous North American language.
In 1999, Munsch was made a member of the Order of Canada. A decade later, he received a star of Canada's Walk of Fame in Toronto.
In the interview with the New York Times Magazine, Munsch said his decision was influenced by watching his brother die from Lou Gehrig's disease, also known as amyotrophic lateral sclerosis (ALS) - the most common form of motor neurone disease (MND).
Munsch said: "They kept him alive through all these interventions. I thought, let him die."
In Canada, people over 18 must meet several requirements to be eligible for assisted dying.
They include having a "serious and incurable illness", making a "voluntary request that is not the result of external pressure" and be in an "advanced state of irreversible decline in capability".
Two independent doctors or nurse practitioners must then assess the patient to confirm that all of the eligibility requirements are met.