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Kjartan

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Agatha Parrot and the Mushroom Boy

By Poskitt, Kjartan, Tazzyman, David

Do You Feel Lucky? (Murderous Maths)

By Poskitt, Kjartan, Reeve, Philip

The Phantom X (Murderous Maths)

By Poskitt, Kjartan, Reeve, Philip

The Secret Life of Codes (Murderous Maths)

By Poskitt, Kjartan, Baker, Ian

The Perfect Sausage and Other Fundamental Formulas (Murderous Maths)

By Poskitt, Kjartan, Reeve, Philip

Gobsmacking Galaxy (Totally)

By Poskitt, Kjartan, Postgate, Daniel

Easy Questions, Evil Answers (Murderous Maths)

By Poskitt, Kjartan, Reeve, Philip

The Magic of Maths (Murderous Maths)

By Poskitt, Kjartan, Davis, Rob

The Brain-Bending Basics (Murderous Maths)

By Poskitt, Kjartan, Davis, Rob, Dunton, Trevor, Reeve, Philip

All Shapes and Sizes: Murderous Maths

By Poskitt, Kjartan, Davis, Rob, Reeve, Philip, Poskitt Kjartan

The Secrets of Sums (Murderous Maths)

By Poskitt, Kjartan

Everyday Maths for Grown-ups: Getting to grips with the basics

By Poskitt, Kjartan

Urgum the Axeman

By Poskitt, Kjartan, Reeve, Philip

The Most Epic Book of Maths EVER (Murderous Maths)

By Poskitt, Kjartan, Davis, Rob

Knowledge

By Poskitt, Kjartan

The Key to the Universe (Murderous Maths)

By Poskitt, Kjartan, Reeve, Philip

Agatha Parrot and the Thirteenth Chicken

By Poskitt, Kjartan, Tazzyman, David

Agatha Parrot and the Odd Street Ghost

By Poskitt, Kjartan, Tazzyman, David

113 +!+k Ups: A Nightmare of Inadvertent Calamities

By Appleby, Steven, Poskitt, Kjartan

Everyday Maths for Grown-ups: Getting to grips with the basics

By Poskitt, Kjartan

The Murderous Maths of Everything

By Poskitt, Kjartan, Davis, Rob

Maths Adventure (Flip-Flap Journeys)

By Poskitt, Kjartan, Watson, Richard

Urgum and the Goo Goo Bah!

By Poskitt, Kjartan, Reeve, Phillip

Urgum the Axeman

By Poskitt, Kjartan

Mystery of the Magic Toy (Poskitt's puzzles)

By Poskitt, Kjartan, Higham, David

Rosie and Jim Annual 1997

By Poskitt, Kjartan, Prole, Helen

Murderous Maths of Everything

By Poskitt, Kjartan, Davis, Rob

Practical Jokes (Brat Packs)

By Poskitt, Kjartan, Chatterton, Martin

Secret Codes (Brat Packs)

By Poskitt, Kjartan, Chatterton, Martin

Murderous Maths Guaranteed to Bend Your Brain

By Kjartan Poskitt, Dunton, Trevor, Poskitt, Kjartan, Reeve, Philip