A share is simply a divided-up unit of the value of a company. For example, if a company is worth £100 million, and there are 50 million shares, then each share is worth £2 (usually listed as 200p). Those shares can and do go up and down in value for various reasons.

Companies issue shares to raise money and investors (that’s you) buy shares in businesses because they believe the company will do well and they want to ‘share’ in its success.

There are two options when buying shares, you can either:

1. Own shares yourself; or

2. Pool your money with other people in a collective investment known as a fund
For first-time investors pooling your money is a slightly safer option as you’re not putting all your eggs in one basket (as you’re not just investing in one company) and it means you can ride out any bumps in the market.
The easiest and cheapest way to buy shares is online from what’s called a ’share dealing platform’.
There’s the main stock exchange – the London Stock Exchange, where you get a whole host of companies including the really big players such as Marks & Spencer. Then there’s the Alternative Investment Market (AIM), which lists smaller developing companies that you may not have heard of.

The secret to making money from buy shares and investing in bonds was summed up by the late father of value investing. "The real money in investing will have to be made – as most of it has been in the past – not out of buying and selling, but out of owning and holding securities, receiving interest and dividends, and benefiting from their long-term increase in value." To be more specific, as an investor in common stocks you need to focus on total return and make a decision to invest for the long-term, which means at an absolute minimum, expecting to hold each new position for five years provided you've selected well-run companies with strong finances and a history of shareholder-friendly management practices.

Buy shares is the esiest way to invest money. By buying an action you get hold of a share in a company's capital.
And you participate in company profits through dividend, if the company decides to distribute it, in case there are any profits.
If the company is at a loss, nothing is received. The shares can be ordinary, privilege and savings. With savings shares you are entitled to a higher dividend than ordinary shares.
But there is no right to vote in ordinary and extraordinary meetings.
With the privileged also but do not have the right to vote in the ordinary assembly, but only in the extraordinary one. Small savers once preferred these last two categories of titles.
Not only because they obtained a higher return, but also because the dividend was cumulative. Cumulation is expected in case of non-distribution of dividends.
Moreover, when the company decided to remove the privileged or savings shares from the market, because it was not very liquid, the shareholder received ordinary shares in exchange.