This topic comes up every year around this time, and for a good reason. Yeah, the more experienced folks know and have their reasons for what and how they do it, but we also have a lot of folks here that may not know, are newer, or have not yet killed any or many animals via archery. This is a VERY important topic for them.
Terry has some very good threads tied in the upper reaches of the POW WOW section. Please, if you have any questions at all, go there and research. If you still have questions, ask them here. Someone who is better at this computer stuff may post a link for you.
I know from experience teaching Hunters Ed and Bowhunters Ed classes in WI over the years that most new hunters are told to aim at a certain location and when asked to show us on a large deer cut out, they really are not in the best of spots. On top of that, very few actually know where all the vitals truly are located.
No shame at all in asking and learning, and in fact NOT learning is a quick way to heartache. There are a lot of ways to kill a critter but some ways are generally a bit more amenable to quick clean kills and good recoveries.
ChuckC