This book, titled "Dyna Effect," explains a market prediction method using "D charts," based on the correlation between human psychology and the lunar cycle, and how these cycles influence market trends and prices. Before delving into the main topic, the book also includes pages on investment warnings and market mechanisms. It's an interesting read, even just as a theory linking celestial movements to market trends (personal opinion). Please refrain from purchasing if you are concerned about minor details, as this is an older book. Keywords: Rice market, commodity trading, futures trading, full moon, new moon.