> How to put a poster up without damaging the wall?

How to put a poster up without damaging the wall?

Posted at: 2014-09-26 
Use 3M magic tape or use blutack and you'll have the best option.

putty may work, but I would go with tacks if you can convince your father

I have recently bought a new poster which I would like to put on the wall. My walls are blue, similar to this attached picture.

I was wondering how to put the poster up without damaging the wall or the paint. My dad thinks that if I use tape or blue tack then it will damage the paint, but i disagree.

Thoughts and ideas?