Resources
Resources
Practical, email-native resources — calculators, assessments and playbooks that turn email decisions into evidence instead of opinion. Free to use, nothing to install.
Email A/B Test Calculator
Size a test before you send, then judge significance after with a clear ship / iterate / kill verdict — using the correct denominator for every metric.
Open the calculator →AI Readiness Assessment
A short, structured check of how ready your email programme is to use AI well — where your data, metadata and decision logic stand today, and what to fix first.
In final preparation — join the list to be first.A/B Testing & Experimentation Playbook
The field guide to running email experiments that actually decide something — sizing, significance, the denominator trap, and a repeatable ship / iterate / kill loop.
In final preparation — join the list to be first.From the book
The book behind the method
Strategic Email Marketing — Intelligence by Design: how to read email as a system, not a scoreboard. The book has its own site, with the waitlist and a look inside.