Hello RR members,I'm a newly licensed FA and want to understand the products we sell better than I do now. I'm wondering if there's a book (or books), similar to a textbook, that explains stocks, options, ETFs, mutual funds, alternative investments, & etc. in detail. I want to understand everything I can, essecially valuation, regarding these and other securities.I guess what I'm looking for is an 'A' to 'Z' book covering securities and investment. Any thoughts would be appreciated.