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Learning stock trading financing etc for someone from mathematical background [duplicate]
Security Analysis(very difficult for beginners )& Intelligent Investor by Benjamin Graham. All about(book series by McGraw) on Stocks,Derivatives,Options,Futures,Market Timings. Reminiscence of a Stock Operator (Life of jesse Livermore). Memoirs , Popular Delusions and Madness of the Crowds by Charles Mackay. Basics of Technical analysis includig Trading Strategies via Youtube videos & Google. Also opt for Seeking alpha free version to learn about portfolio allocation under current scenario there will be few articles as it will ask for premium version if you love it then opt for it. But still these books will do.