A/B testing

Compare two versions of a page, email, or feature to determine which performs better using statistical methods that isolate the impact of specific changes.

A/B testing

A/B testing

definition

Introduction

Why it matters

How to apply it

Keep learning

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.

Related books

Hacking growth

Sean Ellis

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Hacking growth

A practical framework for experiments and insights. Build loops, run tests and adopt a cadence that ships learning every week.

Lean Startup

Eric Ries

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Lean Startup

A disciplined approach to experiments. Define hypotheses, design MVPs and learn before you scale.

Lean Analytics

Alistair Croll

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Lean Analytics

Pick the One Metric that Matters for your stage. Build lean dashboards and use data to decide the next best move.

Related chapters

1

Building your backlog

Random testing wastes time and teaches you nothing. Learn how to collect experiment ideas systematically and prioritise them based on potential impact so you always know what to run next.

2

Creating strong hypotheses

Most experiments fail before they start because the hypothesis is vague or untestable. Learn how to write hypotheses that are specific enough to prove or disprove and tied to metrics that matter.

Wiki

Control group

Maintain an unchanged version in experiments to isolate the impact of your changes and prove causation rather than correlation with external factors.

Net Revenue Retention (NRR)

Track revenue growth from existing customers through expansion and contraction to prove your product delivers increasing value over time.

Conversion tracking

Measure which marketing activities drive desired outcomes to allocate budget toward channels that actually generate revenue instead of vanity metrics.

API

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

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.

Growth lever

Focus resources on high-impact business mechanisms where small improvements generate disproportionate results across the entire customer journey.

Key Performance Indicator (KPI)

Select metrics that reveal whether you're achieving strategic goals to track progress and identify problems before they become expensive to fix.

Integration

Connect tools so data flows automatically between systems to eliminate manual entry, keep records current, and enable sophisticated workflows across platforms.

Growth marketing

Apply disciplined experimentation across the entire customer lifecycle, optimising every stage through rapid testing and data-driven iteration.

Standard Operating Procedure (SOP)

Document your repeatable processes in clear, step-by-step instructions that ensure consistency, enable delegation, and capture institutional knowledge.

Cookie

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

A/B testing

Compare two versions of a page, email, or feature to determine which performs better using statistical methods that isolate the impact of specific changes.

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.

Customer data platform

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

Prioritisation

Systematically rank projects and opportunities using objective frameworks, ensuring scarce resources flow to highest-impact work.

Stakeholder Management

Navigate competing priorities and secure buy-in by systematically understanding, influencing, and aligning internal decision-makers toward shared goals.

North Star Metric

Choose one metric that best predicts long-term success to align your entire team on what matters and avoid conflicting priorities that dilute focus.

Competitive advantage

Identify what you do better or differently that competitors can't easily copy to defend margins and win customers consistently over time.

Sales-led growth

Win customers through direct sales conversations where reps guide prospects from discovery to close with personalised solutions and relationship building.

Lead velocity rate

Measure the month-over-month growth in qualified leads to predict future revenue and catch pipeline problems before they impact revenue three months later.