> Skip to content

Article  •  8 May 2023


3 reasons why readers love Jacqueline Harvey’s Kensy and Max series so much

Learn more about Kensy and Max, Jacqueline Harvey’s series that has sold over 100,000 copies.

Young readers are crazy about Jacqueline Harvey’s spy series, Kensy and Max, and for good reason.

The books are well-written, entertaining, and full of plenty of plot twists to keep active imaginations interested.

Cantered around a pair of twins who find themselves in the middle of a huge mystery, the books have quickly become a favourite of children and parents alike. To back up the hype, the Kensy and Max series has hit several major sales milestones, proving that this series is one worth reading.

Overall Jacqueline Harvey has sold 2 million copies of her books around the world with 100,000 of these sales specifically coming from the Kensy and Max series. Considering that the first book was only published in 2018, that means that about 25,000 copies of Kensy and Max books are sold each year.

The books aren’t just popular in print either. With over 5,000 audiobooks sold, Jacqueline Harvey is one of the most prolific local audiobook authors, with eleven titles in the catalogue so far, and five new audiobooks slated for release in 2023 – one of whichis the newly-released Kensy and Max 10: Time's Up

If your curiosity is piqued, keep reading to discover why readers love these books so much.

3 reviews that highlight what readers love about Kensy and Max

1. The books are a bunch of fun

‘I normally don’t like middle-grade fiction as much as others, but the story, characters, and VOCABULARY (always looking for rich language for my students) are fantastic. I am super invested in the series. Also, have to add that the cipher codes for every chapter are so much fun to crack. I can already imagine my students are going to have a blast with this series. If you’re looking for high engagement, mystery, wholesome and unique characters— this is it!!!’ – Adriana

2. Jacqueline Harvey tackles tough themes

‘[Jacqueline Harvey] is not afraid to deal with bullying, kidnapping, industrial espionage, chemical warfare and domestic abuse. The author continues to develop significant themes of friendship, sibling loyalty, creative problem solving and personal growth.’ – Rhyllis 

3. The series is perfect for reading aloud

‘The characters are so much fun, the story creative and interesting but still appropriate for kiddos! We are enjoying this series as a read-aloud with my 12 and 14-year-old kiddos. They especially enjoy decoding the chapter titles as we go along.’ – April


Ready to check out the books? See the entire series here

Featured Titles

Kensy and Max 1: Breaking News
Introducing Kensy and Max – an action-packed spy-adventure series for girls and boys from bestselling author Jacqueline Harvey!
Read more
Kensy and Max 2: Disappearing Act
What if you knew your missing parents were alive, but you couldn’t tell anyone? How would you find them and who would you trust?
Read more
Kensy and Max 3: Undercover
How do you keep your head in the game when someone wants you gone? When those dearest to you are far away and the future is so uncertain . . .
Read more
Kensy and Max 4: Out of Sight
When does a secret become a lie? And how do you tell right from wrong when deception is all around you?
Read more
Kensy and Max 5: Freefall
Where do you draw the line when your family and friends are in grave danger? Do you take action even though it means ignoring the rules?
Read more
Kensy and Max 6: Full Speed
What do you do when your instincts and obligations pull you in opposite directions? When there are multiple leads, which one do you follow?
Read more
Kensy and Max 7: Take Down
How do you pretend everything is fine when those that you love are in danger? If people you once trusted are now deemed a threat?
Read more
Kensy and Max 8: High Voltage
What happens when you know that family must come first but there are others in desperate need of help? When danger lurks around every corner?
Read more
Kensy and Max 9: Chasing Danger
What do you do when ghosts rise from the past? When they reveal long-buried secrets that could turn your world upside down?
Read more
Kensy and Max 10: Time's Up
The tenth and final book in the bestselling spy series!
Read more

More features

See all
Stock your school library with these wonderful books

26 books for school libraries that students will love.

Puffinalia Magazine 2022, Issue 1

Puffinalia for Educators.

9 audiobooks for the whole family to enjoy

The perfect way to listen and learn! 

Australia’s top 10 books for kids in 2019

Australia has spoken! We’ve rounded up the most-purchased Penguin titles of 2019 for children and teens.

Christmas books for every kind of reader

Books to read this Christmas, no matter which genre you prefer!

Join Jacqueline Harvey for high tea

Bestselling children’s author Jacqueline Harvey is holding a few high teas in Sydney, Melbourne and the Gold Coast. Find out where to meet her!

A Penguin audio engineer shares his favourite recent project

Jason Martin, Lead Audio Engineer at Penguin Random House AU, shares what it was like working on the audiobook for ‘Willa and Woof 1: Mimi is Missing’.

Authors were back on the road in 2022 - and we loved it!

Join us as we travel back in time through 2022 with the authors that hit the road this year.

The albino dog that inspired Jacqueline Harvey to write new children's series

An interview with Jacqueline Harvey about her new series, Willa and Woof.

7 of the best chapter books for ages 6-9

Seven amazing chapter books for children ages 6-9.

Must-have picture books of 2022

Brighten your bookshelves with these works of art.

Easy activities for kids at home

Keep the kids entertained with these fun book-related ideas. There's an activity book for every age: one for littlies, one for kids and one for grown-ups too!

Looking for more articles?

See all articles