She wrote more than 30 books, including her 1974 debut The Cat Ate My Gymsuit, for children's and young adult audiences.

For several years, she had a flat in London, where she was known for presenting a regular item about children's literature on the BBC's Saturday-morning show Live & Kicking in the 1980s and 1990s.

After trying to hide her discomfort and phoning a neighbor about her concern, she ultimately went to a hospital, where she was diagnosed as having suffered a heart attack.

Danziger's debut novel was The Cat Ate My Gymsuit, whose characters were largely based on her childhood experiences.

[3] She frequently gave lectures and speeches, wearing elaborate costumes and calling herself a children's Dame Edna Everage.

Four of her works were named IRA-CBC Children's Choices: The Pistachio Prescription in 1979, The Cat Ate My Gymsuit and Can You Sue Your Parents for Malpractice?

The Society of Children's Book Writers and Illustrators awards the Amber Brown Grant, which provides an all-expenses-paid, full-day visit by a well-respected children's author or illustrator, a stipend to assist in creating the event, and $250 worth of books by the visiting author, to one or two schools annually in her honor.