// Book comparison

Influence vs Think and Grow Rich

Which should you read? A side-by-side comparison of Influence by Robert Cialdini and Think and Grow Rich by Napoleon Hill.

At a glance

Influence Think and Grow Rich
Rating ★ 4.9/5 ★ 4.9/5
Pages 320 238
Reading time ~8.0 h ~6.0 h
Published 1984 1937
Author Robert Cialdini Napoleon Hill
Category Personal Effectiveness Finance & Investment
Publisher William Morrow The Ralston Society

Choose Influence if…

  • You're interested in personal effectiveness.
  • You want the higher-rated book (4.9/5).
  • You want the more recent perspective (1984).

Choose Think and Grow Rich if…

  • You're interested in finance & investment.
  • You prefer a shorter read (~6.0 hours).

Key takeaways — Influence

  • Apply the Reciprocity Principle by providing value to your stakeholders first, creating a psychological obligation that significantly increases your future persuasive power.
  • Leverage Social Proof by highlighting the endorsements of your existing customers and industry leaders to reduce perceived risk for new strategic partners.
  • Utilize Commitment and Consistency by asking for small, initial agreements that lead your stakeholders to stay aligned with your larger organizational goals over time.
Read full Influence summary →

Key takeaways — Think and Grow Rich

  • Develop a Definite Chief Aim for your organization, ensuring that every strategic decision and resource allocation is aligned with a singular, compelling vision of success.
  • Utilize the Master Mind Principle by surrounding yourself with a diverse group of experts and advisors, creating a collective intelligence that is greater than the sum of its parts.
  • Cultivate Unwavering Persistence, recognizing that the ability to maintain effort through temporary defeats is the primary psychological trait that separates high-achievers from the rest.
Read full Think and Grow Rich summary →

The verdict

If you want the higher-rated, more acclaimed read, start with Influence. If you specifically need finance & investment, Think and Grow Rich is the better fit. Both summaries are free — no signup required.

❓ FAQ

Is Influence or Think and Grow Rich better? +

Influence has the higher reader rating (4.9/5 vs 4.9/5), but "better" depends on your goal. Influence focuses on personal effectiveness, while Think and Grow Rich focuses on finance & investment. See the verdict below.

Which is shorter, Influence or Think and Grow Rich? +

Think and Grow Rich is shorter (238 pages, ~6.0 hours) compared to Influence (320 pages, ~8.0 hours).

Should I read Influence or Think and Grow Rich first? +

If you want the quicker, higher-rated read, start with Influence. Otherwise read whichever matches your current goal — both summaries are free on BookHubs.