Jo says that she has never read a book about child-rearing, and that her techniques come from a combination of professional experience and her own upbringing.
Inspired by an article in People magazine in 2005, Jo visited terminally ill children and their families residing at George Mark Children's House in San Leandro, California.
Jo beat out hundreds of other applicants to win the title of Supernanny.
Her reality show, Supernanny, became a hit in the UK during the summer of 2004. The show was brought to the US in 2005.
Jo has never been married.
Jo lives in London with her widowed father when she is not working.
Jo's height is 5'5" (1.65 m).
Jo's mother's name is Joa Frost. Her father's name is Michael Frost. Her brother's name is Matthew Frost.
Jo was a nanny for sixteen years before answering a newspaper ad that led to an audition for her reality series Supernanny.
Jo gives her phone number to every family she works with on Supernanny in case they need to get in touch with her.
When Jo was writing her best-selling 2005 book Supernanny: How to Get the Best from Your Children, she did not have a typewriter or computer. She dictated more than 70 hours of material over the phone to an editor.
Jo was an avid horseback rider when she was a child.
In 2008, Jo offered to give Britney Spears parenting advice. She said she'd like to help put her on the right track and help her be a better mother.
Jo Frost has joined the long list of celebrities to be lampooned on South Park. It happened in South Park episode 146, entitled "Tsst."
Jo: (about her and her brother's upbringing) There was discipline and etiquette, they didn't suffocate us and we had a lot of fun, too. My parents never made promises that they didn't keep.
Jo: I really want to help people have happier families.
Jo: Two short fixes, you know, a quick fix is what every family wants. And that`s not the case when I`m teaching these parents. I want parents to recognize that there`s a journey, so that they can get from A to B. And going through that journey is going to make them stick with B and not want to go back to A.
Jo: You have to be consistent. You have to follow through. You know, you have to pull your socks up as a parent and say, "Well, this is the result that I want to achieve. And now I've got to put the hard work in to get it."
Jo: I beg to differ with the word dysfunctional. The families I work with have issues that many families can relate to.
Jo: Children need boundaries and ground rules. When children don't have structure, they make up their own rules and negative behavior is what they use to get your attention.