I've just run a nice unsuccessful Adwords campaign, and I think my lack of knowledge on how to correctly use Adwords, alongside Analytics is where I'm going wro

I've just run a nice unsuccessful Adwords campaign, and I think my lack of knowledge on how to correctly use Adwords, alongside Analytics is where I'm going wrong. Any chance you know of some decent resources / quick-start guides to help understand Adwords and how to use it?