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Hacking Growth

Hacking Growth

How Today's Fastest-Growing Companies Drive Breakout Success
by Sean Ellis 2017 320 pages
4.11
5k+ ratings
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Key Takeaways

1. Growth Hacking: The New Paradigm for Rapid, Sustainable Growth

"Growth hacking is not about throwing ideas against the wall as fast as you can to see what sticks, it's about applying rapid experimentation to find and then optimize the most promising areas of opportunity."

Data-driven experimentation. Growth hacking is a systematic approach to driving rapid, sustainable growth through continuous experimentation and optimization. It combines elements of marketing, product development, data analysis, and engineering to identify and exploit the most effective growth opportunities.

Cross-functional collaboration. Unlike traditional marketing, growth hacking breaks down silos between departments, bringing together diverse skillsets to solve growth challenges. This collaborative approach allows for more innovative solutions and faster implementation of successful ideas.

Metrics-focused mindset. Growth hackers obsess over metrics, using data to guide decision-making and measure the impact of their efforts. They focus on actionable metrics tied directly to business goals, rather than vanity metrics that may look impressive but don't drive real growth.

2. Building Cross-Functional Growth Teams for Maximum Impact

"Creating cross-functional growth teams is a way to break down these barriers."

Team composition. Effective growth teams typically include:

  • A growth lead to oversee strategy and coordination
  • Product managers to guide feature development
  • Software engineers to implement technical changes
  • Marketing specialists to craft messaging and campaigns
  • Data analysts to measure results and uncover insights

Organizational structure. Growth teams can be structured in two main ways:

  1. Product-led model: Teams report to product management executives
  2. Independent model: Teams report directly to senior management (e.g., VP of Growth)

Cultural shift. Implementing growth teams often requires overcoming resistance to change and fostering a culture of experimentation. Success stories and small wins can help build enthusiasm and buy-in across the organization.

3. Determine Product/Market Fit Before Scaling

"No overly ambitious growth scaling plans should be instituted until a company has determined whether the product it's bringing to market is a 'must-have' or a 'just okay but can live without.'"

Must-have survey. Use a simple survey to gauge product/market fit:
"How disappointed would you be if this product no longer existed tomorrow?"

  • Very disappointed
  • Somewhat disappointed
  • Not disappointed
  • N/A - I no longer use it

Aim for at least 40% of users responding "Very disappointed" to indicate strong product/market fit.

Stable retention. Analyze cohorts of users to ensure retention rates stabilize over time, indicating lasting value. Focus on identifying and replicating the behaviors of your most engaged users to improve overall retention.

Pivot if necessary. Be prepared to adjust your product or target market based on user feedback and data. Many successful companies, like Instagram and Pinterest, pivoted significantly before finding their ultimate product/market fit.

4. Identify and Optimize Your Core Growth Levers

"To hone your growth equation and narrow your focus, it's best to choose one, key metric of ultimate success that all growth activity is geared toward."

Growth equation. Develop a fundamental growth equation that represents the key factors driving your growth. For example, for a subscription business:
(WEBSITE TRAFFIC × EMAIL CONVERSION RATE × ACTIVE USER RATE × CONVERSION TO PAID SUBSCRIBER) + RETAINED SUBSCRIBERS + RESURRECTED SUBSCRIBERS = SUBSCRIBER REVENUE GROWTH

North Star metric. Choose a single, overarching metric that best captures the core value you create for customers. Examples:

  • Airbnb: Nights booked
  • Facebook: Daily active users
  • eBay: Gross merchandise volume

Data analysis. Dive deep into your user data to identify patterns and opportunities:

  • Segment users into cohorts based on behaviors, demographics, and acquisition channels
  • Analyze differences between highly engaged users and those who churn
  • Look for unexpected insights that may reveal new growth opportunities

5. Implement High-Tempo Testing to Accelerate Learning

"The companies that grow the fastest are the ones that learn the fastest."

ICE framework. Prioritize growth experiments using the ICE score:

  • Impact: Potential effect on key metrics
  • Confidence: Likelihood of success based on data and past results
  • Ease: Time and resources required to implement

Experiment velocity. Aim to run multiple experiments simultaneously, with a goal of 20-30 tests per week for mature growth teams. Start with a lower volume and gradually increase as you build capacity and expertise.

Learning loop. Follow a continuous cycle of improvement:

  1. Analyze data and gather insights
  2. Generate ideas for experiments
  3. Prioritize experiments
  4. Run tests
  5. Analyze results and apply learnings

Hold weekly growth meetings to review results, select new experiments, and maintain momentum.

6. Acquire Customers Through Strategic Channel Selection

"It is very likely that one channel is optimal. Most businesses actually get zero distribution channels to work. Poor distribution—not product—is the number one cause of failure."

Channel discovery. Experiment with various acquisition channels to find the most effective options for your business:

  • Viral/word-of-mouth (e.g., referral programs, social sharing)
  • Organic (e.g., content marketing, SEO, PR)
  • Paid (e.g., social ads, search ads, influencer marketing)

Channel optimization. Once you identify promising channels, focus on maximizing their effectiveness:

  • Refine targeting and messaging
  • Optimize landing pages and conversion funnels
  • Scale successful campaigns

Language/market fit. Craft compelling messaging that resonates with your target audience:

  • Use customer language from surveys and interviews
  • A/B test headlines, value propositions, and calls-to-action
  • Iterate quickly to find the most effective communication

7. Activate Users by Optimizing Their Initial Experience

"The first experience people have with your product is also the time that they are most consciously trying to figure it out."

Onboarding optimization. Design a "learn flow" to guide new users to their aha moment:

  • Minimize friction in the sign-up process
  • Provide clear, step-by-step guidance
  • Highlight key features and benefits
  • Offer rewards for completing onboarding steps

Personalization. Tailor the initial experience based on user attributes and behaviors:

  • Customize content and recommendations
  • Adapt onboarding flows for different user segments
  • Use machine learning to continuously improve personalization

Positive friction. Strategically introduce small challenges or commitments to increase engagement:

  • Gamify the onboarding process with achievements and progress indicators
  • Ask users to complete profile information or set preferences
  • Encourage users to take actions that create "stored value" in the product

8. Retain Customers by Building Habits and Delivering Ongoing Value

"The core goal during the medium phase of retention is to solidify users' commitment to your product by making the use of it habitual for them."

Habit formation. Apply Nir Eyal's Hook Model to create engaging product loops:

  1. Trigger: External or internal cue to take action
  2. Action: Simple behavior in anticipation of reward
  3. Variable reward: Satisfy user's need while leaving them wanting more
  4. Investment: User puts something into the product, increasing likelihood of returning

Ongoing education. Continuously guide users to discover new value:

  • Implement an "ongoing onboarding" process to introduce advanced features
  • Use targeted messaging to highlight relevant capabilities
  • Offer webinars, tutorials, and resources to help users maximize product value

Retention analysis. Regularly analyze cohorts to identify drop-off points and opportunities for improvement:

  • Break down users by acquisition date, usage patterns, and other relevant factors
  • Look for commonalities among users who remain active long-term
  • Experiment with re-engagement campaigns for at-risk or churned users

9. Monetize Effectively by Experimenting with Pricing and Revenue Models

"Even if you aren't selling a Web service or a tech product, the point is that your customers might be less price sensitive than you think—and the growth hacking process provides a simple way of figuring out just how price sensitive they actually are."

Pricing optimization. Continuously test and refine your pricing strategy:

  • Use customer surveys to gauge willingness to pay
  • Experiment with different pricing tiers and structures
  • Consider value-based pricing models tied to usage or outcomes

Revenue model innovation. Explore alternative monetization strategies:

  • Freemium models with premium upgrades
  • In-app purchases or virtual currencies
  • Advertising and sponsored content
  • Data monetization (with appropriate privacy safeguards)

Psychological pricing tactics. Leverage consumer psychology to drive purchases:

  • Employ price anchoring to influence perceived value
  • Use decoy pricing to guide users toward preferred options
  • Experiment with urgency and scarcity to motivate action

10. Create a Virtuous Cycle of Continuous Growth and Innovation

"The breakout companies that sustain their success are those who constantly push for more, leveraging their success, capitalizing on new opportunities, and creating a virtuous cycle of growth."

Compounding gains. Focus on accumulating small wins that build upon each other over time. A 5% improvement each month compounds to an 80% gain over a year.

Avoid complacency. Continually scan for potential threats and opportunities:

  • Monitor market trends and emerging technologies
  • Stay attuned to shifting customer needs and preferences
  • Analyze competitor moves and industry disruptions

Invest in innovation. Use the fruits of growth to fund new initiatives:

  • Allocate resources to "moonshot" projects with high potential impact
  • Explore adjacent markets or complementary product offerings
  • Acquire promising start-ups to expand capabilities or market reach

Maintain a growth mindset throughout the organization, fostering a culture of experimentation and continuous improvement. Remember that growth is never "done" – there are always new opportunities to discover and optimize.

Last updated:

Review Summary

4.11 out of 5
Average of 5k+ ratings from Goodreads and Amazon.

Hacking Growth receives mostly positive reviews, praised for its practical insights on digital marketing and business growth strategies. Readers appreciate the clear structure, real-world examples, and actionable advice. Some find it repetitive or basic for experienced marketers, but many consider it valuable for entrepreneurs and growth teams. The book is lauded for its comprehensive coverage of growth hacking techniques, from team building to product development and user acquisition. Critics note it may be less relevant as marketing trends evolve rapidly.

Your rating:

About the Author

Sean Ellis is a prominent figure in the world of growth hacking and digital marketing. As the CEO and cofounder of GrowthHackers.com, he leads a global online community of 1.8 million users dedicated to growth strategies. Ellis coined the term "growth hacker" in 2010, significantly impacting the field of digital marketing. He is also the producer of the Growth Hackers Conference and a sought-after speaker for both startups and Fortune 100 companies. Ellis's expertise has been recognized by major publications such as the New York Times, Wall Street Journal, and WIRED. His influence extends beyond his online platform, as he regularly shares insights on business growth and marketing strategies.

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