There are two interesting parts to an S1 (or a 10K): * a qualitative description of the business, as the management sees it. I find this super interesting and

There are two interesting parts to an S1 (or a 10K): * a qualitative description of the business, as the management sees it. I find this super interesting and it's usually in the middle of the document - look for "management's discussion and analysis ..", or go here: https://www.sec.gov/Archives/edgar/data/1561550/000119312519227783/d745413ds1.htm#toc745413_10 https://www.sec.gov/Archives/edgar/data/1561550/000119312519... * the quantitative part. There are three key, but interrelated concepts to learn. The income statement, balance sheet, and cash flow statement. A intro course to accounting should be great, I can recommend this one: https://www.wallstreetprep.com/self-study-programs/accounting-crash-course/ https://www.wallstreetprep.com/self-study-programs/accountin...