First, gather the basic information about the various stocks and shares. You can easily find the meaning of the two words in the dictionary. But, you have to understand their meaning with regards to finance. Therefore, you will have to search for stocks and shares in the books regarding financial management. There are many books on the principles of financial management which have been written by different authors over the past few years. However, it will be better for you to buy a recently published book so as to get the up to date knowledge and understanding about the two terms.
You can also search for stocks and shares on the internet. There is an enormous number of websites which provide information related to the financial markets and securities (including stocks and shares) which are being traded. But, it is extremely important for you to make sure that the website, from which you are getting the required information, is authentic.
There are many educational institutions which provide necessary training regarding the security trading in financial markets like the stock exchange. It will be a good idea to enrol yourself in a programme at any college to get the essential understanding about stocks and shares.
You can also do an internship at any firm so as to learn about stocks, shares and how they are traded in the stock exchanges. During your internship, you should also try to learn about the computer software which is used to trade various stocks and shares.