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Unless otherwise indicated, the original writing, diagrams, frameworks and other materials on this site are © Zenda Ofir and are shared under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence.

You are welcome to share, reproduce, translate, adapt and build on this material, including for professional purposes, provided that you clearly acknowledge Zenda Ofir as the original source, link to the original material where possible, and indicate if you have adapted or changed it.

You do not need to ask my permission, but I would be delighted to hear from you if you use or adapt something from the site.

Materials credited to other authors or organisations are not covered by this licence; their original copyright and licence conditions apply.

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Last updated: October 2026