I never have fished jigs. I have been into bass fishing for 5 years now and never caught a jig fish and hardly ever fish them. Some of my questions are: when do I fish all the types of jigs? What type of structure? What colors are best? How should I fish them? Whats good for my condition?(early summer, mid 80s) what other things could you tell me I should know?

Pinned thread in the very top of this forum.  Get a coffee and read it. Good stuff.

 

http://www.bassresource.com/bass-fishing-forums/topic/12403-jig-fishing-questions/ 

The pinned thread at the top Mark mentioned contains everything you need to know. Read it, then apply it and have fun!!