Thomas Bulkowski’s work is always my first authority on candlestick patterns. After that Steve Nison.
but be aware that the efficacy of pin bars and other candlestick patterns has all been base don research and back-testing done markets with a closed session, unlike forex. Therefore overnight gaps, which are impossible in forex, are key to some of the definitions used and are a normal part of the landscape in others. You have to assume that no classic candlestick pattern will work as well in forex as the text books say they work.