Hi I am a new freelance web designer/developer and I am self employed and glad to find this site.

A question I have is: Is it common to outsource work on certain aspects of project to other businesses and other freelancers. Would it be right in doing this and does client need to know ? And what if client found out.
Is this normal practices in the web designing industry. I guess some people might be good at coding and not so good on customizing graphics.

Any advice would be appreciated.

thanks, Adam