TODAY'S grandmothers are a far cry from the grannies of yesteryear.

While most of our granny ancestors were content to let their hair go grey while they baked or sat in a comfortable chair knitting, today's grandmothers are more likely to be found practising yoga on a stand-up paddle, or at the hair salon having their highlights done followed by a lively lunch with their mates.

Andrea Gallagher, a young mother who did not like the way grandmothers were portrayed in children's books, decided to do something about the old granny stereotype.

"Today's grandmothers are vibrant," Andrea said.

"I did not like the way they were represented in most books.."

Over three years, Andrea developed a children's book brimming with grandmothers who represent today's world: active grandmothers involved in activities ranging from beach-going to working out at the gym.

Entitled Super Star Grandmas, the book is aimed at young readers to enjoy reading with their mothers and grandparents.

"I used devices I knew would be good for speech development with children," Andrea said.

"It is heavy on alliteration. It (alliteration) worked with my son, it's an important factor in their learning. The book is written in rhyme with every letter of the alphabet portraying a rhyme for a grandmother."

Angela's own mother, mother-in-law and neighbour are in the book.

"When my mother retired she took up personal training with a group of other ladies in their 60s and 70s," Andrea said.

"Those ladies are on the J page.

"They jump and jig. They do gym workouts and go for coffee afterwards.

"My mother-in-law has her hair and nails done while she is waiting to see how her hashtag is rating. She is all over technology and keeps the family together around the world."

Super Star Grandmas is available in some bookstores and on line at www.andreagallalgher.com.au.