1. Our Planet: The One Place we all call Home by Matt Whyman & Richard Jones

2. I Must Betray You by Ruta Sepetys

3. Only A Monster by Vanessa Len

4. Welcome to your Boobs by Yumi Stynes & Melissa Kang

5. Ninja Kid 9: Ninja Fish by Anh Do

6. Aaron Slater, Illustrator by Andrea Beatty & David Roberts

7. The First Scientists by Corey Tutt

8. Friday Barnes 10: Undercover by R.A. Spratt

9. Gangsta Granny Strikes Again by David Walliams

10. What a Wonderful Phrase by Nicola Edwards & Manu Montoya

This week, the specially priced non-fiction title based on the TV series, Our Planet takes out the top spot in our bestseller lists. It’s closely followed by our two most popular YA titles this month, our YA Book of the Month, a historical novel set in Romania during the late 1980s, and the fantasy thriller by Vanessa Len, placing a monster as the hero of the tale.

The new non-fiction book for teens and tweens by Yumi Stynes and Melissa Kang, answering all the questions they may have about breasts, has also been very popular this week.

And for the language lovers, a collection of strange and unusual idioms from around the world rounds out our chart.