Hidden Job Market
Believe it or not, 80% of the available jobs on the market are not advertised as being vacant, which means that more than four fifths of the job market is actually being closed, hidden. This implies that a job seeker does not even know there are such jobs available, unless he does some digging, some researching of his own. There are a lot of strategies of breaching into the hidden job market among which networking and cold calling are the most successful ones.