The U.S. Securities and Exchange Commision (https://www.sec.gov/) provides the stock market education. It is designed to help investors gain insight into investing and is written in plain English. 

The U. S. Securities and Exchange Commission (SEC) has a three-part mission:

• Protect investors,
• Maintain fair, orderly, and efficient markets,
• Facilitate capital formation.

The main purposes of these laws, Securities Exchange Act of 1934, can be reduced to two common-sense notions:

• Companies offering securities for sale to the public must tell the truth about their business, the securities they are selling, and the risks involved in investing in those securities.
• Those who sell and trade securities – brokers, dealers, and exchanges – must treat investors fairly and honestly.