Andy Griffiths is one of Australia's most popular children's authors. He and illustrator Terry Denton have collaborated on more than 30 bestselling books since their first title, Just Tricking, was published in 1997.

In Australia Andy and Terry's books have sold over 10 million copies, won 80 children's choice awards and 10 Australian Book Industry Awards-including Book of the Year for The 52-Storey Treehouse in 2015.

Their much-loved Treehouse Series has been embraced by children around the world and is now published in more than 35 countries. Five of the books in the series have been adapted for the stage and have all had sell-out seasons at the Sydney Opera house, as well as highly successful seasons in the Netherlands, New Zealand and America.

Andy is a passionate advocate for literacy and in 2015 was awarded the Dromkeen Medal to honour his outstanding contribution to Australian children's literature. He is also an ambassador for both The Indigenous Literacy Foundation and the Pyjama Foundation.

Terry Denton is a writer and illustrator based in Melbourne, Australia. His work is mainly humour-based cartoon style.


Terry Denton has illustrated bestsellers such as the JUST! series and the Treehouse series by Andy Griffiths. He has three children and is the owner of a back garden burial ground for dead pets.

--This text refers to the hardcover edition.

Andy Griffiths and Terry Denton are a creative partnership that began with <b><i>Just Tricking!</i></b> in 1997 and now extends to eight <b>Just</b> books and more than a million copies sold, the ground-breaking <b><i>The Bad Book</i></b>, the off-the-wall success of <b><i>The Cat on the Mat is Flat</i></b>, the <b>Bum</b> trilogy (which made the <i>New York Times</i> bestseller list), the bestselling <b><i>The Very Bad Book</i></b> and now the <b>Treehouse</b> series. Andy and Terry have won numerous kids choice awards and many of their titles are nominated every year. --This text refers to the hardcover edition.

Andy Griffiths and Terry Denton are a creative partnership that began with Just Tricking! in 1997 and now extends to eight Just books and more than a million copies sold, the ground-breaking The Bad Book, the off-the-wall success of The Cat on the Mat is Flat, the Bum trilogy (which made the New York Times bestseller list), the bestselling The Very Bad Book and now the Treehouse series. Andy and Terry have won numerous kids choice awards and many of their titles are nominated every year. --This text refers to an alternate kindle_edition edition.

Full of crazy, funny pictures, which will make you laugh . . . Extremely enjoyable, very funny and easy to read! -- SophieStarlight ― Guardian.com

With its slapstick humour, brilliant absurdities and some bonus puzzles to solve at the back of the book, The 13-Storey Treehouse is the best 'tall story' you'll read this year! -- Lancashire Evening Post on 13-Storey Treehouse

Longtime collaborators Griffiths and Denton (Killer Koalas from Outer Space) get metafictional in their latest book (first published in Australia), and the result is anarchic absurdity at its best... Denton's manic cartooning captures every twist and turn in hilarious detail, as babies are pelted with garbage, yapping dogs squashed, and monkeys catapulted into the distance. -- Publishers Weekly, on 13-Storey Treehouse

Packed with cartoons and craziness ― Sunday Express

This book is about friends Andy and a Terry that live in a really cool 13-storey treehouse, with cool things like a bowling alley, games room and secret lab. They invent things and write things; Andy does the writing and Terry does the pictures. I could read this book on my own without assistance. I read it pretty quickly as it was really interesting and funny, so I wanted to keep reading it. I liked there was chapters, so I could read to the end of the chapter and knew where I was picking up, and each chapter was a good length. I liked at the end of the book there were fun things to do; a word search, maze, spot the difference, a quiz and jokes. The black and white illustrations helped bring the book to life. Chapter 7 the monster mermaid, maybe be scary to some readers. The pictures of the monster aren't really scary, but what is written might scare some; talks about eating people, but goes into detail; ripping limbs, crushing heads etc, so a bit gruesome. One chapter has one word all the way through, which was silly but funny. The friends get up to some crazy things, an enjoyable book. -- Toppsta Reviewer, on 13-Storey Treehouse

Especially good for reluctant readers as it is heavily illustrated and VERY funny . . . This really is the coolest treehouse ever! ― Angels & Urchins

My son absolutely adores this whole series of books. They are hilariously funny but so imaginative and creative. I've recommended them to so many people and haven't yet found a child who doesn't love them. This first book sets the scene with Andy and Terry - the characters and authors/illustrators - living in a treehouse with 13 stories who are meant to be writing a book but keep getting distracted by an endless stream of hilarious madness. ― Toppsta Reviewer

I bought this book (the first in a series) on the basis of many positive reviews. Having now read it, I know my decision is vindicated. It's funny, hugely imaginative and has LOTS of pictures. What child would not want a treehouse with see-through swimming pool, lemonade fountain, games room, bowling alley and marshmallow machine? Besides, this one is also home to book-making duo Andy, the writer, and Terry, the illustrator. But story-making isn't always straightforward, especially when there are gorillas to contend with. No matter, flying cats to the rescue! And when the story is over, there are still jokes, a spot-the-difference, a maze, wordsearch and treehouse triva to enjoy.

Children with the latest brain-to-brain-information technology will be able to read it; others will have to ask for it at the library or a bookshop. They will also want to visit http://www.andygriffiths.com.au/ for loads more fun and the latest from author Andy Griffiths.

-- Toppsta Reviewer, on 13-Storey Treehouse

Brilliant series and if you haven't read them yet why not? Start at the beginning and work through them all. Laugh out loud funny and I love reading about all the things they have in their treehouse. ― Toppsta Reviewer

I bought the set of these after reading the other Toppsta reviews. My son read this book solidly in one day. He has LOVED it, the mix of text and illustrations is ideal for this age range, I could hear him laughing away to himself whilst he was reading it, although I'm not convinced he followed the whole story, he has since read most of it again (as we were out and the next one was at home) A fabulous buy that will be read time and time again. ― Toppsta Reviewer

This is silly and fun and a great book to encourage of love of reading in young children. I read this to my 5 year old daughter and months later she still makes reference to a scene in the book. She is a strong reader for her age and wanted to get the other books in the series. She started reading more bits of them herself before devouring the 65 and 78-storey treehouse books entirely by herself. The 78-Storey Treehouse she read in one sitting. She can't wait for the 91-Storey Treehouse to come out later this year. ― Toppsta Reviewer --This text refers to the paperback edition.