Kjartan Poskitt

Murderous Maths
Guaranteed to Mash your Mind
The Murderous Maths of Everything
The Brain- Bending Basics
Maths
Do You Feel Lucky?
Isaac Newton and His Apple
The Mean and Vulgar Bits
The 5ecret L1fe of Code5
Desperate Measures
Savage Shapes
The Phantom X
Agatha Parrot
The Key To The Universe
Awesome Arithmetricks
The Perfect Sausage
Easy Questions, Evil Answers
Agatha Parrot and the Floating Head
Agatha Parrot and the Heart of Mud
The Fiendish Angletron
The Gobsmacking Galaxy
Borgon the Axeboy and the Dangerous Breakfast
Perfect Sausage and Other Fundamental Formulas
Agatha Parrot and the Thirteenth Chicken
Agatha Parrot and the Odd Street School Ghost
Borgon the Axeboy and the Prince's Shadow
The Secrets of Sums
Numbers: The Key to the Universe
Agatha Parrot and the Mushroom Boy
Borgon the Axeboy and the Whispering Temple
Professor Fiendish's Book of Brain-benders: Completely Written by Professor Fiendish with NO Help at All from Kjartan Poskitt
Shapes and Measures
Maths Adventure
Everyday Maths for Grown-Ups: Getting to Grips with the Basics
Escape from Hotel Infinity (Numbers)
Practical Jokes
Urgum and the Seat of Flames
Henry the Tudor dude
Secret Codes
Murderous Maths Sudoku
Urgum the Axeman
A Brief History of Pants
Attack of Killer Puzzles
Professor Fiendish's Book of Diabolical Brainbenders
Urgum and the Googoobah
Sudoku: 100 Fun Number Puzzles
The Magic of Pants
Decode the Deadliest Joke in the Universe
Kakuro And Other Fun Number Puzzles
The Mystery of the Pirate's Treasure
Esa Condenada Mala Suerte