Influence, New and Expanded: The Essential Guide to the Psychology of Influence and Persuasion in Everyday Life

Influence, New and Expanded: The Essential Guide to the Psychology of Influence and Persuasion in Everyday Life

ASIN: 0063136899
Analysis Date: Mar 10, 2026

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Review Analysis Results

B
Authenticity Grade
15.00%
Fake Reviews
4.89
Original Rating
4.50
Adjusted Rating

Analysis Summary

The overwhelming majority of these reviews for Robert Cialdini's 'Influence' appear genuine, with approximately 85% showing authentic characteristics. All reviews are verified purchases, which significantly increases their credibility. The book is a well-established classic in psychology and marketing, making numerous positive reviews expected and normal. The reviews display a healthy diversity in length and style, from brief endorsements to detailed analyses, which is typical of genuine customer feedback.

Strong evidence of authenticity includes multiple reviews with specific personal context and detailed engagement with the book's content. Review #1 mentions having owned a previous copy and losing it, creating a plausible backstory. Review #2 provides comparative analysis with another book ('Tribes'), demonstrating genuine reading experience. Review #8 comes from a self-identified 'Cialdini Certified Practitioner' who offers expert perspective on the new edition. These reviews contain the kind of specific knowledge, personal investment, and nuanced commentary that are difficult to fabricate convincingly.

Only minor concerns exist regarding a few very brief reviews that lack substance. Review #4 consists of just 'easy read' and Review #7 is quite generic ('Great book very helpful'). While these could potentially be low-effort authentic reviews, their brevity makes them less informative. However, they don't display the repetitive marketing language or suspicious patterns typically associated with coordinated manipulation campaigns. The absence of identical phrasing across reviews and the natural variation in writing styles suggest organic feedback.

In summary, this review set appears predominantly authentic with strong signals of genuine reader engagement. The few brief reviews are insufficient evidence of manipulation, especially given the verified purchase status and the book's established reputation. The detailed reviews with personal stories, specific references to content, and varied perspectives strongly indicate real customer experiences rather than coordinated promotion.

Key patterns identified in the review analysis include: Verified purchases only, Diverse review lengths and styles, Specific references to book concepts like 'click whirr'.

Review Statistics

7,400
Total Reviews on Amazon
-0.39
Rating Difference
Editor's Analysis

Evaluating Influence Literature: What Makes Cialdini's Expanded Edition Stand Out

When considering Robert Cialdini's 'Influence, New and Expanded,' buyers should recognize this isn't just another self-help book but a foundational text in behavioral psychology with practical applications. The expanded edition adds three new principles and updates research, making edition selection crucial for both new readers and those familiar with the original work.

Key Considerations Before Buying

  • Determine whether you need the foundational principles (original six) or the expanded insights (three new principles) based on your familiarity with influence psychology.
  • Consider your application context—this book bridges academic research with practical business, sales, and everyday persuasion scenarios differently than motivational memoirs.
  • Assess edition relevance: the 'New and Expanded' version includes contemporary examples and digital-era applications absent from earlier editions.

What Our Analysts Recommend

Quality indicators include specific, research-backed principles (like reciprocity and social proof) rather than vague motivational advice. Authentic reviews should reference concrete applications in negotiation, marketing, or personal relationships, not just general praise about 'changing my life.'

Motivation & Self-Improvement Market Context

Market Overview

The motivation and self-improvement category is saturated with anecdotal success stories, but Cialdini's work occupies a distinct niche as research-based influence psychology. Unlike personality-driven business memoirs, this book maintains academic credibility while offering practical frameworks applicable across industries.

Common Issues

Many books in this category offer superficial lists without underlying psychological mechanisms, or present proprietary systems lacking empirical support. Readers often struggle to distinguish evidence-based content from repackaged common sense presented as breakthrough insights.

Quality Indicators

High-quality influence literature cites peer-reviewed research, provides actionable frameworks (not just inspiration), and distinguishes between ethical persuasion and manipulation. Look for books that reference specific studies and offer implementation guidelines rather than theoretical concepts alone.

Review Authenticity Insights

Grade B Interpretation

A Grade B with 15% estimated fake reviews indicates strong but not perfect authenticity—typical for established bestsellers where some reviews may be incentivized. The 4.50 adjusted rating (down from 4.89) suggests genuine satisfaction remains high despite some potentially inflated praise.

Trust Recommendation

Focus on verified purchase reviews that discuss specific principles like 'commitment and consistency' or 'scarcity' with personal implementation examples. The 85% authentic rate means most feedback is reliable, but be skeptical of reviews using identical phrasing or focusing solely on packaging/shipping.

Tips for Reading Reviews

Prioritize reviews that mention applying specific principles in professional contexts (sales, management, marketing) over vague praise. Look for comparisons between this expanded edition and previous versions, which indicate knowledgeable readers rather than casual purchasers.

Expert Perspective

Cialdini's expanded 'Influence' represents a rare convergence of academic rigor and practical utility in the self-improvement space. The 4.50 adjusted rating from verified purchases confirms its enduring value beyond hype, while the B authenticity grade reflects typical marketplace realities for a category leader. This isn't a quick-fix motivational book but a systematic framework backed by decades of research, explaining its sustained relevance across business, psychology, and behavioral economics circles.

Purchase Considerations

Weigh whether you need the foundational text (first-time readers) or the updated applications (returning readers). Consider your learning style—this book presents research studies alongside real-world examples rather than inspirational stories. The expanded edition justifies purchase if you apply influence principles in digital environments or contemporary business settings.

Comparing Alternatives

Shoppers should compare with more recent behavioral economics works (like Kahneman's 'Thinking, Fast and Slow') for complementary perspectives on decision-making.

Price Analysis

This highly-rated psychology/personal development book appears positioned in the mid-range of its category. Given the strong reviews, it likely offers good value at typical market prices. Monitor Amazon's price history and consider waiting for major sales events for the best deal.

MSRP Assessment

Estimated MSRP: $29.99
Source: Product category average
Amazon Price: Unable to compare

Market Position

Positioning: Mid-range
Alternatives Range: $15-$35
Value: With exceptional ratings (4.89/5 from 7400 reviews), this book likely offers strong perceived value compared to similar psychology/personal development titles.

Buying Tips

Best Time to Buy: Best prices often occur during major sales events (Prime Day, Black Friday) or when new editions are released.
Deal Indicators: Watch for Kindle edition discounts, used/refurbished copies, or bundle deals with related books.
Watch For: Be wary of third-party sellers charging significantly above typical market prices for this category.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Mar 10, 2026

Understanding This Analysis

What does Grade B mean?

This product has good review authenticity with minor concerns. While most reviews appear genuine, we detected some patterns that warrant mild caution.

Adjusted Rating Explained

The adjusted rating (4.50 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (4.89 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.

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