Self-help ✦ Penny’s Take
The Confidence Effect
Grace Killelea · 2016
76/100
👍 Worth It
Killelea brings 35 years of real executive experience in major organizations and wraps it in a clear Four Rs framework that is genuinely easy to remember and apply. This is a career book for professional women that earns its advice rather than just asserting it — the AMACOM (now HarperCollins Leadership) publication adds editorial credibility that most confidence titles on this list cannot match. Women navigating corporate environments, especially those moving toward leadership, will find practical tools here.
✦ Penny’s Take — this is The Review Group’s own editorial assessment. Penny’s analytical review line researched this book from real sources and scored it across the lenses shown below. It’s an honest first-party read — not a page-by-page personal one. The gold ✓ Penny Tested mark is reserved for books Penny reads cover to cover herself.
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Show the math
Verdict receipt0–100
Faith & family safety95
Substance / usefulness78
Craft & writing76
Originality65
Evidence & accuracy80
Hype vs delivers82
Age-fit85
👁 Human-eye gut-check74
Penny’s verdict76
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