Know Stack by Unknown Mentalist

Know Stack by Unknown Mentalist
This special intro price will go up to $12 on October 12, 2020.
Know Stack is a cyclical stack. Given any card, you can know the next card immediately.
For some perhaps easier than 8 Kings stack or even Si Stebbins Stack.
More random looking than Si Stebbins stack.
No math (but some memorization) needed to know the next card.
Option to have either random suits or rotating suits.
Can be learnt in under 100 seconds.
Very easy to learn. Very difficult to forget.
Bonuses included.
Most cyclical stack routines/effects can be performed with this.
1st edition 2020, PDF 19 pages.