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The Master Key System
✅ In stock
⭐ Lowest price we've tracked
F
Grade
Analysis Confidence
55%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 19, 2026 7:45 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price sits right around what this item typically fetches.
- 🏷️The retail sticker price has been slashed by 84% — a steep markdown from the official listing.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
20/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Amazon.com
🚚 Shipping
Free Shipping
⚙️ Specifications
ASIN
1936594242
Publisher
SoHo Books
Publication date
November 25, 2010
Language
English
Print length
158 pages
ISBN-10
9781936594245
ISBN-13
978-1936594245
Item Weight
8.6 ounces
Dimensions
6 x 0.4 x 9 inches
Best Sellers Rank
#22,432 in Books (See Top 100 in Books) #271 in Self-Esteem (Books) #782 in Personal Transformation Self-Help #5,593 in Religion & Spirituality (Books)
Customer Reviews
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