Sample size

Calculate how many users you need in experiments to detect meaningful differences and avoid declaring winners prematurely based on insufficient data.

Sample size

Sample size

definition

Introduction

Why it matters

How to apply it

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Growth orchestration

The cockpit that sits above your four growth engines. Individual teams can excel at their own metrics, but without orchestration they're musicians playing different songs. This is where everything comes together and where improvements in one engine amplify gains in another.

Explore playbooks

Growth team tools

Growth team tools

The wrong tools create friction. The right ones multiply your output without adding complexity. These are the tools I recommend for growth teams that move fast.

Compound growth

Compound growth

Small improvements multiply. A 10% gain across twelve metrics doesn't add up to 120% - it compounds to 3x growth. This is the mathematical engine behind systematic growth.

Growth strategy

Growth strategy

Four decisions that shape everything else. When growth feels harder than it should, the problem is usually here. Get these right and execution becomes much easier.

Growth rhythms

Growth rhythms

Without rhythm, effort becomes scattered and progress invisible. A consistent operating cadence keeps your team aligned and your growth system continuously improving.

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4

Analysing and acting on results

Statistical significance is just the beginning. Learn how to interpret results correctly, avoid false positives, and turn winning experiments into permanent improvements across your growth engines.

Wiki

Growth engine

Build self-reinforcing systems across demand generation, funnel conversion, sales pipeline, and customer value that create continuous momentum.

Braindump

Clear mental clutter by transferring all thoughts, tasks, and ideas onto paper or screen, creating space for focused work.

Cookie

Store information in browsers to track user behaviour across visits and enable personalised experiences without requiring login for every interaction.

API

Enable tools to exchange data programmatically so you can build custom integrations and automate processes that vendor-built integrations don't support.

Buyer persona

Document your ideal customer's role, goals, and challenges to tailor messaging and prioritise features that solve real problems they actually pay for.

First-touch attribution

Credit the channel that introduced prospects to your brand to measure awareness efforts and understand which top-of-funnel activities start customer journeys.

Positioning statement

Define how you're different from alternatives in a way that matters to customers to guide all messaging and ensure consistent market perception.

Sales qualified lead velocity

Track how fast your pipeline of ready-to-buy leads grows to forecast sales capacity needs and spot when lead quality or sales efficiency changes.

Go-to-market strategy

Plan how you'll reach customers and generate revenue by choosing channels, pricing, and sales models that match your product and market reality.

Minimum viable test

Design experiments that answer specific questions with minimum time and resources to maximise learning velocity without over-investing in unproven ideas.

Total Addressable Market (TAM)

Estimate the maximum revenue opportunity if you captured 100% market share to size your opportunity and prioritise which markets to enter first.

Compound growth rate

Calculate your true growth trajectory by measuring the rate at which your business grows when gains build on previous gains over multiple periods.

Unit economics

Analyse profit per customer to determine if your business model works at scale before investing heavily in growth and customer acquisition.

Email sequence

Automate multi-touch email campaigns that adapt based on recipient behaviour to nurture leads consistently without manual follow-up from reps or marketers.

Customer data platform

Unify customer data from every touchpoint to create complete profiles that power personalised experiences across marketing, sales, and product.

Product-market fit

Achieve the state where your product solves a genuine, urgent problem for a defined market that's willing to pay and actively pulling your solution in.

OMTM (One Metric That Matters)

Focus your entire organisation on the single metric that best predicts success at your current growth stage, avoiding distraction and misalignment.

Customer Acquisition Cost (CAC)

Calculate the total cost of winning a new customer to evaluate marketing efficiency and ensure sustainable unit economics across all channels.

Pirate metrics

Track your user journey through Acquisition, Activation, Retention, Referral, and Revenue to identify which stage constrains growth most.

Inbound Marketing

Attract prospects through valuable content that solves real problems, building trust and generating qualified leads who approach you.