It is very good thing that you want to learn about the Stock Exchange. There are number of things, need to be kept in mind for work in stock market. Before professional entrepreneurship, You need to clear all the "Fundamentals of the Stock Market" which will help to polish your skills. There are many experts in London like LSEG and Marlet, who can help you on this topic. Otherwise you can also take more references from stock exchange ebooks or blogs which are easily available on Internet.
Source :-
http://www.globalfinanceschool.com/