Printing them
Print at 100 per cent, not fit to page, or any template will come out the wrong size. Every booklet works on its own and every sheet inside works on its own, so there is no order to follow.
Photocopy freely for a class, a club or a family. No permission needed and nothing to sign up for.
The older pack
The original eighteen page worksheet pack is still here, and every cipher page on this site also prints itself as a worksheet.
The original packHow these were made
The writing, worksheets, diagrams and animations were produced by Claude, an AI assistant made by Anthropic, working from a person's prompting, direction and curation. A human decided what the project should be, what belonged in it, what was wrong, and what to keep. The AI did the drafting and the building.
Facts were checked where checking was possible, and where a source could not be confirmed the claim was left out rather than guessed at. The credits page inside each booklet says the same thing.