Series ✦ Penny’s Take 🎧 Audiobook
The Science of Self Discipline
Dr. Kerry L. Johnson · 2014
🎙 Narrated by Dr. Kerry L. Johnson (author-narrated), Nightingale-Conant
47/100
👎 Skip It
This one leans hard on NLP and 'reprogramming' language from a 1990s Nightingale-Conant program, and reader reactions are split — some found the techniques useful, others say there's not much real science behind the claims. It's secular business psychology rather than anything spiritual, but the dated production and disputed grounding hold it back. It's author-narrated, and the vintage 1990s production style shows compared to modern audiobooks.
✦ 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.
⚠ Parent note — our reviewers flagged: Uses NLP/hypnosis-adjacent 'reprogramming' language — presented as secular business psychology, but worth flagging for readers sensitive to that framing. We still scored it 47; these are context for your family, not an automatic skip.
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🎙 Narration: fine Author-narrated but reflects its original 1990 Nightingale-Conant production style, which feels dated next to modern audiobooks.
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Show the math
Verdict receipt0–100
Faith & family safety78
Substance / usefulness50
Craft & writing48
Originality48
Evidence & accuracy38
Hype vs delivers55
Age-fit75
Human-eye read48
Penny’s verdict47
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