This deceptively simple little book contains three secretsâ three prescriptions from this self-described âhappiness doctorââwhich are at once obvious and profoundly life-changing. A pioneer in the personal growth field and a lifelong peace advocate, Ken Keyes, Jr. was the author of fifteen booksâincluding his famous Handbook to Higher Consciousness and The Hundredth Monkeyâwith four million copies in print in at least seven languages.