Fundamental Analysis, Company Performance

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When I first started investing in dividend companies I quickly realised that understanding balance sheets, income statements and free cash flow is a must. Although I know more than a year ago, the more I read the more questions I have. I hope to get answers for 2 basic questions:
- what are the resources you use to get a picture on a company that's on your watchlist? Earnings reports? Annual reports and presentations? How do you combine all those resources?
- what books/pages would you recommedn for a newbie DGI investor who would want to learn more about fundamental analysis and company performance analysis more in detail?

Thanks for all the help.