ms+access+courses - Realtionships

Hi

I've have created 3 tables. One of these is the main table which holds all of the information I need to know for the events i'm organising this year. these include details such as wheere they're being held, whose working, whether it needs catering etc. I have now created 2 other tables, 1 called 'correspondence' and the other 'booked ambassadors'. Both of these tables hold extra information that i would like to view from the main table but are something that is not visible form the outset (otherwise it would be a very big table!) Now I have already created these tables could you please tell me how to link them togther, adn also from my explanation do you think this is the easiest wa to show this infomration?

Thank you for your help.

regards,

Emily