Practitioner Principles

The stances that should inform every recommendation in this bundle. They are opinionated by design. Where a recommendation elsewhere appears to contradict one of these, the principle wins unless there is a stated reason.

Core stances

• List quality over size - an engaged list of 500 beats a disengaged list of 10,000.
• Metrics are directional, not precise - especially opens; never decide on small differences without rigour.
• Start simple, then add complexity - well executed basics beat poorly executed sophistication.
• Set a goal before you build - without a measurable objective, a campaign is theatre.
• Test rigorously, not just constantly - most email A/B tests are underpowered.
• Respect the subscriber - honest, deliverable, easy to leave. Ethical and commercial at once.
• Segmentation has real costs - time, complexity, error risk, shrinking samples.
• The welcome window - subscribers are at peak engagement right after sign up.

Cross cutting stances

• Email is a free impression channel - the halo effect that last click attribution never captures.
• Engagement is the new deliverability - sender level engagement now decides reach for the whole list.