Plain Reckoner
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Guides and findings

Clearer numbers. Better questions. Start with the decision you are making.

Make your message clearer

Original examples, practical methods and free tools you can use.

Latest store guides

Shipping, returns, ads and bundles. Check what you keep after costs.

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For publishers

Ad income, network requirements and website value, with sources and limits.

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How we measure

Methods, source checks and the limits of the evidence.

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All blog posts

Newest first. Showing 1–10 of 60 posts.