Title: Growth Hacker Marketing: A Primer on the Future of PR, Marketing, and Advertising (Revised & Expanded)

Author: Ryan Holiday

Publication date: September 30, 2014 (Portfolio/Penguin Random House). First “Penguin Single” e-original in 2013.

Pages: 176 (2014 edition).

Value for PMs & founders — problem it solves
Shows how to swap big-bang campaigns for a lean, test-and-learn growth system: secure PMF, engineer acquisition & virality loops, and optimize retention before scaling spend.

Summary
Defines the growth-hacker mindset (everything testable/trackable/scalable). Lays out four steps: (1) Product-Market Fit, (2) Find your growth hacks/channels, (3) Make it go viral (1→2→4…), (4) Close the loop with retention & optimization. 2014 edition adds updated case studies.

3 community-reported takeaways (with sources)

  1. PMF first—don’t pour fuel until the engine runs. @siquanong

  2. Loops beat blasts—viral mechanics plus retention drive sustainable growth. Blinkist

  3. Metrics that matter—avoid vanity metrics; iterate based on real signal. Product Management Book Summaries

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