When I first took an interest in investing, I began with all the books by THE MOTLEY FOOLS. That included their workbook. I followed every single exercise and learned the basics on how to read the financial pages as well as analyze a monthly and year-end report of any company (except a bank--that was a whole other kettle of fish). I called up companies and asked for their investor relations departments and ordered their year-end reports (they're free!). I analyzed them thoroughly.
Anyhow, after I mastered those basics, I moved on and read every book that would teach me something DIFFERENT from what I had already learned. I read books by Phil Fisher, Peter Lynch, Charles Schwab and bios on Warren Buffet, the "Rich Dad, Poor Dad" books, etc. I felt very empowered with this knowledge--I think that everyone should have a basic understanding of the stock market.
At the same time as I was learning about stocks, Mr. RG was mastering the mutual fund market, reading books, etc. Then we pooled our knowledge.