I am an ex-commodities trader. My advice is to get some used CFA lvl 1 materials or you can download the pdfs online through torrent. they arent up to date but they should be cheap. the corp fin, accounting, and portfolio sections are great. derivatives, fixed income and equities are ok; also to learn about the market and how it works better to read materials from the exchanges and articles then textbooks. ALSO cant stress enough that to know finance you need to learn accounting and how to read company's annual reports and financials.