title: a little help for creating a wordpress site
body: <p>I want to create a site that admin can add the products that have (title, category , description , and multiple images) ,  and can add category , and categories will be shown in the site and if the visitor clicks on each category, sees the products with that category,and if clicks on each product, sees the description and a slide show for images.
  Im completely new in wordpress, I want to know usually such plugins are available on the internet for download , or I have to  make it by my self, please give me help,thanks.</p>