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Title: The Pocket Calculator Game Book #2, Author: Edwin Schlossberg
Title: Building Mental Muscle (Revised and Updated Edition): Conditioning Exercises for the Six Intelligence Zones, Author: Allen D. Bragdon
Hardcover $3.99 $7.98 Current price is $3.99, Original price is $7.98.
Title: Discover Your IQ Potential: Unlock the Power of Your Mind, Author: Arcturus
Title: IQ Challenge: The Fun Way to Sharpen Your Mental Skills, Author: Deborah Hercun
Hardcover $4.99 $9.98 Current price is $4.99, Original price is $9.98.
Title: Calculate: Use Your Calculators and Your Wits in Six Challenging Pencil Games for Two or More Players, Author: Sid Sackson
Hardcover $2.30 $2.95 Current price is $2.30, Original price is $2.95.