What To Exect At A Stamp Show?

Hi Everyone,
I have never been to a stamp show, there is one here in the Sacramento area on August 16. I am looking for overprint books and of course, to browse and buy stamps.

I know there are websites and such which I have looked at but wanted to get personal opinions and experiences of what you all have seen at stamp shows.

I wonder if it is rows of tables with people selling their stamps and accessories. I saw the pdf (http://stamps.org/userfiles/file/sh...Program.pdf) and looks like a lot of different rooms as well.

I am not sure I want to go on the first day, will it be really crowded? I don't like crowds ....

Also, if anyone has photos of any recent stamp shows, would love to see them.

Thank you,
SueStamps