primer on audi model evolution

[Rgberryjr@aol.com]

i am a new lister - in indianapolis - been lurking for month - have bought 
1990 v8 in spite of all the warnings (joking) - 

it does need some work, so i will be asking things - 

to start with, what's the quickest way for me to learn different models and 
cross-model-application of the good gabble i read as a lister?  is there a 
basic primer for audi models/years/etc?   thanks in advance...rick berry