There is no clip art library in Pages, but you can easily add images you have elsewhere on your hard drive. Go to Insert > Choose... (at the bottom of the menu) & navigate to the location of the images.
Thank you Peggy but...if I have no images anywhere else where could I get them from? Or do I have some and not know it? I know for sure there are no pictures like from a digital camera. I'm guessing I could go online and find some but just not sure where to go.