YSK: If you want to know what's going on in a (large, public) corporation, read their annual Form 10-K report. Marketing and shareholder communication can be distorted to make things look better than they are, but the Form 10-K is legally required to have undistorted financial and risk analysis.
from /r/YouShouldKnow
YSK：如果你想知道一家（大型上市）公司發生了什麼，請閱讀他們的年度10-K表格報告。市場營銷和股東溝通可以被扭曲，使事情看起來比實際情況要好，但10-K表格是法律要求的，有不扭曲的財務和風險分析。