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In 1971, Grace Fellowship international’s founder, Dr. Charles R. Solomon, wrote Handbook to Happiness. We give thanks for how God has used this volume with over 250,000 in print in 10 languages. It is available through Tyndale House and Grace Fellowship International’s store (865-429-0450).
A condensation of chapter two with diagrams is called The Wheel and Line. See this article in English and in over 40 languages on this site.
Introductory video:
