What is delegation??? : Vlog for new comer

Hello friends,
I saw people who come to work on block chain have been faced a lot of problems and on behalf of this corner I decided to make video for people so that they may earn the knowledge about block chain and they can have a easy and smooth way to move.

Yoday in this vlog I have talked about deligation, why deligation is important?? How can a people get deligation and on which way they can get a proper use of deligation.