Children's ✦ Penny’s Take
Integrity Ninja
Mary Nhin · 2021
78/100
👍 Worth It
Three million copies across the Ninja Life Hacks series is a signal the format genuinely works with kids and caregivers, and Integrity Ninja delivers its message — honesty and promise-keeping matter — with visual clarity and appropriate simplicity for the 3–8 age range. The ninja aesthetic is more brand than storytelling depth, and every book in the series follows the same template, but for a quick SEL read-aloud that sparks a real conversation about integrity, it earns its place on the shelf.
✦ 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
safety95
substance72
craft70
originality60
accuracy82
hype75
age-fit90
human-eye78
Penny’s verdict78
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