The document discusses strategies for trading the USDCAD currency pair using support and resistance zones, Fibonacci ratios, and harmonic patterns. It emphasizes defining supply and demand zones from the 4-hour timeframe and trading within these zones to improve probabilities. Ratio trading focuses on finding price zones where multiple Fibonacci ratios complete within a small range. Harmonic patterns that form in predefined support and resistance zones can increase the probability of a reversal above 70%. Trend is relative while ratios are absolute. The conclusion advocates trading harmonic patterns in support and resistance zones to maximize success.