Web page layout
As I find it is very important that client knows about website layout, it is easy to communicate. You can tell your website designer where exactly you want your content to be.

- left side bar is not used anymore, but if a client needs it we can do it
- If you want to have images changing - it is known as slideshow
- Gallery is a page where you show many images, but images does not move
- Navigational menu is a bar with a links to all the pages in your website, a single website could have many navigational menus and it can be placed in different places in the website.