Audio & Video
Beat the Calculator
Kjartan Poskitt proves what looks complicated can be simple.
- Beat the Calculator
- 1089
- Perfect pentagon
- Fabulous flexagon
- Making Cubes
- Prime number pizza
- Numerical masterclass
- Q&A with Kjartan Poskitt
- Going around gardens!
- Early drawings
- Three pointers for writers
- Names and Questions
- More Cookie Books
- Final thoughts
- Wishes
- A novel in verse
- A question from Blake
- Questions and Answers

















