If you ever need to buy something from a shop or if you ever need to take a service from a person to a day to day life activity.I guess it is.
So lets look at the fundamentals about this story.If this world there is buyers and sellers.When you need to buy a good or service you need to go out there.with the evolution of human we got our needs expanded and we have to buy or something that is not a near us or physically accessible.
So with the help of internet over the years we could buy something or hire someone remotely for our needs.In this case ,internet has taken a huge part of this process.So as a shop owner in above buying and selling processes,web sites are taking part as the shops or the 3rd party in internet.
Fiverr is a one of the most outstanding web site related to the online market place.
This is the background of fiverr in brief.

Fiverr is an online marketplace for freelance services.In brief fiverr gives you the best service providers around the world for lowest prices.To get the first impression about the site.Let us take the first impression here.
As you can see there is mainly two parties which buyers and sellers.In my case I am a service provider that means I am a seller and you will be the buyer in fiverr.

FAQ
Most frequent questions and answers
Yes.It is totally free to join and you just need a gmail or a Facebook account to join
Yes.It is a total legal website and more than 3 million sellers and buyers are registered in the site
You just need a gmail or a Facebook account for registering. Please read my article on How to register as a buyer in fiverr