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A Beginner's Guide to Death, a book by aid worker Simon Boas whose essays about his feelings towards death went viral, is being published posthumously.

In her first broadcast interview, his wife Aurelie says he knew he "wouldn't see the book" but that he knew he had "done his part".

Speaking to Today's Emma Barnett, she said: "It's a bit unusual to grieve this way.

"It's a great responsibility for me. But it's quite wonderful."

Listen to the Today programme on Radio 4 and Â鶹ԼÅÄ Sounds: 6-9am Monday-Friday; and 7-9am on Saturdays.

Photo credit: David Ferguson