A Forex trading journal is a log tailored to currency trading. It records each FX trade’s details (pair, entry/exit price, lot size, direction, etc.) along with notes on market context. Journals can be manual (spreadsheets or notebooks) or automated (broker-synced services). For Forex robots, a specialized journal accommodates 24-hour market data and high leverage. It often includes currency-specific analytics (e.g. performance by currency pair, correlation studies). Good Forex journals let you tag trades by strategy or session, and note macro factors (e.g. central bank news). By reviewing the journal, traders can see which currency pairs or sessions yield the best robot performance. For example, one might find an EA works well on EUR/USD during the London session, but underperforms on USD/JPY. Emphasizing metrics like pip outcomes, trade duration, and average spread, a Forex journal helps fine-tune an algorithm’s market selection and timing.