| Six Sigma Demystified A Self-Teaching Guide Paul Keller 0-07-144544-7  $15.96 | |
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| Six Sigma for Dummies Craig Gygi, Neil DeCarlo, Bruce Williams 0-7645-6798-5 $17.59 | |
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| The Six Sigma Leader How Top Executives Will Prevail in the 21st Century Peter S. Pande 0-07-145408-X $19.96 | |
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| What is Lean Six Sigma? Mike George, Dave Rowlands, Bill Kastle 0-07-142668-X $9.60 | |
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